2024
Ngambou, Midrel Wilfried Ngandeu; Perrin, Pauline; Balasa, Ionut; Tiranov, Alexey; Brinza, Ovidiu; Benedic, Fabien; Renaud, Justine; Reveillard, Morgan; Silvent, Jeremie; Goldner, Philippe; Achard, Jocelyn; Tallaire, Alexandre
Hot ion implantation to create dense NV centre ensembles in diamond Journal Article
In: Appl. Phys. Lett. , vol. 124, iss. 134002, 2024.
@article{Wilfried2024,
title = {Hot ion implantation to create dense NV centre ensembles in diamond},
author = {Midrel Wilfried Ngandeu Ngambou and Pauline Perrin and Ionut Balasa and Alexey Tiranov and Ovidiu Brinza and Fabien Benedic and Justine Renaud and Morgan Reveillard and Jeremie Silvent and Philippe Goldner and Jocelyn Achard and Alexandre Tallaire},
doi = {10.1063/5.0196719},
year = {2024},
date = {2024-03-27},
urldate = {2024-03-27},
journal = {Appl. Phys. Lett. },
volume = {124},
issue = {134002},
abstract = {Creating dense and shallow nitrogen-vacancy (NV) ensembles with good spin properties is a prerequisite for developing diamond-based quantum sensors exhibiting better performance. Ion implantation is a key enabling tool for precisely controlling spatial localization and density of NV color centers in diamond. However, it suffers from a low creation yield, while higher ion fluences significantly damage the crystal lattice. In this work, we realize N2+ ion implantation in the 30–40 keV range at high temperatures. At 800 °C, NV's ensemble photoluminescence emission is three to four times higher than room temperature implanted films, while narrow electron spin resonance linewidths of 1.5 MHz, comparable to well-established implantation techniques, are obtained. In addition, we found that ion fluences above 2 × 1014 ions/cm2 can be used without graphitization of the diamond film, in contrast to room temperature implantation. This study opens promising perspectives in optimizing diamond films with implanted NV ensembles that could be integrated into quantum sensing devices.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Creating dense and shallow nitrogen-vacancy (NV) ensembles with good spin properties is a prerequisite for developing diamond-based quantum sensors exhibiting better performance. Ion implantation is a key enabling tool for precisely controlling spatial localization and density of NV color centers in diamond. However, it suffers from a low creation yield, while higher ion fluences significantly damage the crystal lattice. In this work, we realize N2+ ion implantation in the 30–40 keV range at high temperatures. At 800 °C, NV’s ensemble photoluminescence emission is three to four times higher than room temperature implanted films, while narrow electron spin resonance linewidths of 1.5 MHz, comparable to well-established implantation techniques, are obtained. In addition, we found that ion fluences above 2 × 1014 ions/cm2 can be used without graphitization of the diamond film, in contrast to room temperature implantation. This study opens promising perspectives in optimizing diamond films with implanted NV ensembles that could be integrated into quantum sensing devices.
2023
Chan, Ming Lai; Tiranov, Alexey; Appel, Martin Hayhurst; Wang, Ying; Midolo, Leonardo; Scholz, Sven; Wieck, Andreas D.; Ludwig, Arne; Sørensen, Anders Søndberg; Lodahl, Peter
On-chip spin-photon entanglement based on photon-scattering of a quantum dot Journal Article
In: npj Quantum Information, vol. 9, no. 1, pp. 49, 2023, ISSN: 2056-6387.
@article{Chan2023,
title = {On-chip spin-photon entanglement based on photon-scattering of a quantum dot},
author = {Ming Lai Chan and Alexey Tiranov and Martin Hayhurst Appel and Ying Wang and Leonardo Midolo and Sven Scholz and Andreas D. Wieck and Arne Ludwig and Anders Søndberg Sørensen and Peter Lodahl},
url = {https://doi.org/10.1038/s41534-023-00717-5},
doi = {10.1038/s41534-023-00717-5},
issn = {2056-6387},
year = {2023},
date = {2023-05-19},
urldate = {2023-05-19},
journal = {npj Quantum Information},
volume = {9},
number = {1},
pages = {49},
abstract = {The realization of on-chip quantum interfaces between flying photons and solid-state spins is a key building block for quantum-information processors, enabling, e.g., distributed quantum computing, where remote quantum registers are interconnected by flying photons. Self-assembled quantum dots integrated into nanostructures are one of the most promising systems for such an endeavor thanks to their near-unity photon-emitter coupling and fast spontaneous emission rate. Here we demonstrate high-fidelity on-chip entanglement between an incoming photon and a stationary quantum-dot hole spin qubit. The entanglement is induced by sequential scattering of the time-bin encoded photon interleaved with active spin control within a microsecond, two orders of magnitude faster than those achieved in other solid-state platforms. Conditioning on the detection of a reflected photon renders the entanglement fidelity immune to the spectral wandering of the emitter. These results represent a major step towards realizing a quantum node capable of interchanging information with flying photons and on-chip quantum logic, as required for quantum networks and quantum repeaters.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The realization of on-chip quantum interfaces between flying photons and solid-state spins is a key building block for quantum-information processors, enabling, e.g., distributed quantum computing, where remote quantum registers are interconnected by flying photons. Self-assembled quantum dots integrated into nanostructures are one of the most promising systems for such an endeavor thanks to their near-unity photon-emitter coupling and fast spontaneous emission rate. Here we demonstrate high-fidelity on-chip entanglement between an incoming photon and a stationary quantum-dot hole spin qubit. The entanglement is induced by sequential scattering of the time-bin encoded photon interleaved with active spin control within a microsecond, two orders of magnitude faster than those achieved in other solid-state platforms. Conditioning on the detection of a reflected photon renders the entanglement fidelity immune to the spectral wandering of the emitter. These results represent a major step towards realizing a quantum node capable of interchanging information with flying photons and on-chip quantum logic, as required for quantum networks and quantum repeaters.
Nicolas, L.; Businger, M.; Mejia, T. Sanchez; Tiranov, A.; Chanelière, T.; Lafitte-Houssat, E.; Ferrier, A.; Goldner, P.; Afzelius, M.
Coherent optical-microwave interface for manipulation of low-field electronic clock transitions in 171Yb3+:Y2SiO5 Journal Article
In: npj Quantum Information, vol. 9, no. 1, pp. 21, 2023, ISSN: 2056-6387.
@article{Nicolas2023,
title = {Coherent optical-microwave interface for manipulation of low-field electronic clock transitions in 171Yb3+:Y2SiO5},
author = {L. Nicolas and M. Businger and T. Sanchez Mejia and A. Tiranov and T. Chanelière and E. Lafitte-Houssat and A. Ferrier and P. Goldner and M. Afzelius},
url = {https://doi.org/10.1038/s41534-023-00687-8},
doi = {10.1038/s41534-023-00687-8},
issn = {2056-6387},
year = {2023},
date = {2023-03-03},
journal = {npj Quantum Information},
volume = {9},
number = {1},
pages = {21},
abstract = {The coherent interaction of solid-state spins with both optical and microwave fields provides a platform for a range of quantum technologies, such as quantum sensing, microwave-to-optical quantum transduction and optical quantum memories. Rare-earth ions with electronic spins are interesting in this context. In this work, we use a loop-gap microwave resonator to coherently drive optical and microwave clock transitions simultaneously in a 171Yb3+:Y2SiO5 crystal, achieving a Rabi frequency of 0.56 MHz at 2.497þinspaceGHz over a 1-cm long crystal. Furthermore, we provide insights into the spin dephasing at very low fields, showing that superhyperfine-induced collapse of the Hahn echo plays an important role. Our calculations and measurements reveal that the effective magnetic moment can be manipulated in 171Yb3+:Y2SiO5, which suppresses the superhyperfine interaction at the clock transition. At a doping concentration of 2 ppm and 3.4 K, we achieve spin coherence time of 10.0þinspace±þinspace0.4þinspacems.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The coherent interaction of solid-state spins with both optical and microwave fields provides a platform for a range of quantum technologies, such as quantum sensing, microwave-to-optical quantum transduction and optical quantum memories. Rare-earth ions with electronic spins are interesting in this context. In this work, we use a loop-gap microwave resonator to coherently drive optical and microwave clock transitions simultaneously in a 171Yb3+:Y2SiO5 crystal, achieving a Rabi frequency of 0.56 MHz at 2.497þinspaceGHz over a 1-cm long crystal. Furthermore, we provide insights into the spin dephasing at very low fields, showing that superhyperfine-induced collapse of the Hahn echo plays an important role. Our calculations and measurements reveal that the effective magnetic moment can be manipulated in 171Yb3+:Y2SiO5, which suppresses the superhyperfine interaction at the clock transition. At a doping concentration of 2 ppm and 3.4 K, we achieve spin coherence time of 10.0þinspace±þinspace0.4þinspacems.
Tiranov, Alexey; Angelopoulou, Vasiliki; Diepen, Cornelis Jacobus; Schrinski, Björn; Sandberg, Oliver August Dall’Alba; Wang, Ying; Midolo, Leonardo; Scholz, Sven; Wieck, Andreas Dirk; Ludwig, Arne; Sørensen, Anders Søndberg; Lodahl, Peter
Collective super- and subradiant dynamics between distant optical quantum emitters Journal Article
In: Science, vol. 379, no. 6630, pp. 389-393, 2023.
@article{Tiranov2023,
title = {Collective super- and subradiant dynamics between distant optical quantum emitters},
author = {Alexey Tiranov and Vasiliki Angelopoulou and Cornelis Jacobus Diepen and Björn Schrinski and Oliver August Dall’Alba Sandberg and Ying Wang and Leonardo Midolo and Sven Scholz and Andreas Dirk Wieck and Arne Ludwig and Anders Søndberg Sørensen and Peter Lodahl},
url = {https://www.science.org/doi/abs/10.1126/science.ade9324},
doi = {10.1126/science.ade9324},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {Science},
volume = {379},
number = {6630},
pages = {389-393},
abstract = {Photon emission is the hallmark of light-matter interaction and the foundation of photonic quantum science, enabling advanced sources for quantum communication and computing. Although single-emitter radiation can be tailored by the photonic environment, the introduction of multiple emitters extends this picture. A fundamental challenge, however, is that the radiative dipole-dipole coupling rapidly decays with spatial separation, typically within a fraction of the optical wavelength. We realize distant dipole-dipole radiative coupling with pairs of solid-state optical quantum emitters embedded in a nanophotonic waveguide. We dynamically probe the collective response and identify both super- and subradiant emission as well as means to control the dynamics by proper excitation techniques. Our work constitutes a foundational step toward multiemitter applications for scalable quantum-information processing. The merger of nanophotonics with quantum optics has provided a platform for the development of deterministic single-photon sources and sources of entangled photons. Tiranov et al. show that multiple quantum emitters (two or three quantum dots) can be coupled through a photonic crystal waveguide. The waveguide helps to overcome the typically short-range nature of the dipole-dipole interactions and allows the signature properties of such a coupled system, subradiant and superradiant emission, to be observed. Control of such processes could provide an enabling step for scaling up deterministic solid-state photon-emitter interfaces and multiphoton-entangled sources for applications in quantum information processing. —ISO A photonic crystal waveguide enables distant coupling between multiple solid-state optical quantum emitters.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Photon emission is the hallmark of light-matter interaction and the foundation of photonic quantum science, enabling advanced sources for quantum communication and computing. Although single-emitter radiation can be tailored by the photonic environment, the introduction of multiple emitters extends this picture. A fundamental challenge, however, is that the radiative dipole-dipole coupling rapidly decays with spatial separation, typically within a fraction of the optical wavelength. We realize distant dipole-dipole radiative coupling with pairs of solid-state optical quantum emitters embedded in a nanophotonic waveguide. We dynamically probe the collective response and identify both super- and subradiant emission as well as means to control the dynamics by proper excitation techniques. Our work constitutes a foundational step toward multiemitter applications for scalable quantum-information processing. The merger of nanophotonics with quantum optics has provided a platform for the development of deterministic single-photon sources and sources of entangled photons. Tiranov et al. show that multiple quantum emitters (two or three quantum dots) can be coupled through a photonic crystal waveguide. The waveguide helps to overcome the typically short-range nature of the dipole-dipole interactions and allows the signature properties of such a coupled system, subradiant and superradiant emission, to be observed. Control of such processes could provide an enabling step for scaling up deterministic solid-state photon-emitter interfaces and multiphoton-entangled sources for applications in quantum information processing. —ISO A photonic crystal waveguide enables distant coupling between multiple solid-state optical quantum emitters.
Staunstrup, Mathias J. R.; Tiranov, Alexey; Wang, Ying; Scholz, Sven; Wieck, Andreas D.; Ludwig, Arne; Midolo, Leonardo; Rotenberg, Nir; Lodahl, Peter; Jeannic, Hanna Le
Direct observation of non-linear optical phase shift induced by a single quantum emitter in a waveguide Journal Article
In: arXiv, vol. 2305.06839, 2023.
@article{Staunstrup2023,
title = {Direct observation of non-linear optical phase shift induced by a single quantum emitter in a waveguide},
author = {Mathias J. R. Staunstrup and Alexey Tiranov and Ying Wang and Sven Scholz and Andreas D. Wieck and Arne Ludwig and Leonardo Midolo and Nir Rotenberg and Peter Lodahl and Hanna Le Jeannic},
doi = {10.48550/arXiv.2305.06839},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {arXiv},
volume = {2305.06839},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Liu, Shikai; Sandberg, Oliver August Dall'Alba; Chan, Ming Lai; Schrinski, Björn; Anyfantaki, Yiouli; Nielsen, Rasmus Bruhn; Larsen, Robert Garbecht; Skalkin, Andrei; Wang, Ying; Midolo, Leonardo; Scholz, Sven; Wieck, Andreas Dirk; Ludwig, Arne; Sørensen, Anders Søndberg; Tiranov, Alexey; Lodahl, Peter
Violation of Bell inequality by photon scattering on a two-level emitter Journal Article
In: arXiv, vol. 2306.12801, 2023.
@article{Liu2023,
title = {Violation of Bell inequality by photon scattering on a two-level emitter},
author = {Shikai Liu and Oliver August Dall'Alba Sandberg and Ming Lai Chan and Björn Schrinski and Yiouli Anyfantaki and Rasmus Bruhn Nielsen and Robert Garbecht Larsen and Andrei Skalkin and Ying Wang and Leonardo Midolo and Sven Scholz and Andreas Dirk Wieck and Arne Ludwig and Anders Søndberg Sørensen and Alexey Tiranov and Peter Lodahl},
doi = {10.48550/arXiv.2306.12801},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {arXiv},
volume = {2306.12801},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Meng, Yijian; Chan, Ming Lai; Nielsen, Rasmus B.; Appel, Martin H.; Liu, Zhe; Wang, Ying; Bart, Nikolai; Wieck, Andreas D.; Ludwig, Arne; Midolo, Leonardo; Tiranov, Alexey; Sørensen, Anders S.; Lodahl, Peter
Deterministic photon source of genuine three-qubit entanglement Journal Article
In: arXiv, vol. 2310.12038, 2023.
@article{Meng2023,
title = {Deterministic photon source of genuine three-qubit entanglement},
author = {Yijian Meng and Ming Lai Chan and Rasmus B. Nielsen and Martin H. Appel and Zhe Liu and Ying Wang and Nikolai Bart and Andreas D. Wieck and Arne Ludwig and Leonardo Midolo and Alexey Tiranov and Anders S. Sørensen and Peter Lodahl},
doi = {10.48550/arXiv.2310.12038},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {arXiv},
volume = {2310.12038},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2022
Jeannic, Hanna Le; Tiranov, Alexey; Carolan, Jacques; Ramos, Tomás; Wang, Ying; Appel, Martin Hayhurst; Scholz, Sven; Wieck, Andreas D.; Ludwig, Arne; Rotenberg, Nir; Midolo, Leonardo; García-Ripoll, Juan José; Sørensen, Anders S.; Lodahl, Peter
Dynamical photon–photon interaction mediated by a quantum emitter Journal Article
In: Nature Physics, vol. 18, no. 10, pp. 1191-1195, 2022, ISSN: 1745-2481.
@article{LeJeannic2022,
title = {Dynamical photon–photon interaction mediated by a quantum emitter},
author = {Hanna Le Jeannic and Alexey Tiranov and Jacques Carolan and Tomás Ramos and Ying Wang and Martin Hayhurst Appel and Sven Scholz and Andreas D. Wieck and Arne Ludwig and Nir Rotenberg and Leonardo Midolo and Juan José García-Ripoll and Anders S. Sørensen and Peter Lodahl},
url = {https://doi.org/10.1038/s41567-022-01720-x},
doi = {10.1038/s41567-022-01720-x},
issn = {1745-2481},
year = {2022},
date = {2022-10-01},
journal = {Nature Physics},
volume = {18},
number = {10},
pages = {1191-1195},
abstract = {Single photons role in the development of quantum science and technology. They can carry quantum information over extended distances to act as the backbone of a future quantum internet1 and can be manipulated in advanced photonic circuits, enabling scalable photonic quantum computing2,3. However, more sophisticated devices and protocols need access to multi-photon states with particular forms of entanglement. Efficient light–matter interfaces offer a route to reliably generating these entangled resource states4,5. Here we utilize the efficient and coherent coupling of a single quantum emitter to a nanophotonic waveguide to realize a quantum nonlinear interaction between single-photon wavepackets. We demonstrate the control of a photon using a second photon mediated by the quantum emitter. The dynamical response of the two-photon interaction is experimentally unravelled and reveals quantum correlations controlled by the pulse duration. Further development of this platform work, which constitutes a new research frontier in quantum optics6, will enable the tailoring of complex photonic quantum resource states.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Single photons role in the development of quantum science and technology. They can carry quantum information over extended distances to act as the backbone of a future quantum internet1 and can be manipulated in advanced photonic circuits, enabling scalable photonic quantum computing2,3. However, more sophisticated devices and protocols need access to multi-photon states with particular forms of entanglement. Efficient light–matter interfaces offer a route to reliably generating these entangled resource states4,5. Here we utilize the efficient and coherent coupling of a single quantum emitter to a nanophotonic waveguide to realize a quantum nonlinear interaction between single-photon wavepackets. We demonstrate the control of a photon using a second photon mediated by the quantum emitter. The dynamical response of the two-photon interaction is experimentally unravelled and reveals quantum correlations controlled by the pulse duration. Further development of this platform work, which constitutes a new research frontier in quantum optics6, will enable the tailoring of complex photonic quantum resource states.
Appel, Martin Hayhurst; Tiranov, Alexey; Pabst, Simon; Chan, Ming Lai; Starup, Christian; Wang, Ying; Midolo, Leonardo; Tiurev, Konstantin; Scholz, Sven; Wieck, Andreas D.; Ludwig, Arne; Sørensen, Anders Søndberg; Lodahl, Peter
Entangling a Hole Spin with a Time-Bin Photon: A Waveguide Approach for Quantum Dot Sources of Multiphoton Entanglement Journal Article
In: Phys. Rev. Lett., vol. 128, iss. 23, pp. 233602, 2022.
@article{Appel2022,
title = {Entangling a Hole Spin with a Time-Bin Photon: A Waveguide Approach for Quantum Dot Sources of Multiphoton Entanglement},
author = {Martin Hayhurst Appel and Alexey Tiranov and Simon Pabst and Ming Lai Chan and Christian Starup and Ying Wang and Leonardo Midolo and Konstantin Tiurev and Sven Scholz and Andreas D. Wieck and Arne Ludwig and Anders Søndberg Sørensen and Peter Lodahl},
url = {https://link.aps.org/doi/10.1103/PhysRevLett.128.233602},
doi = {10.1103/PhysRevLett.128.233602},
year = {2022},
date = {2022-06-01},
journal = {Phys. Rev. Lett.},
volume = {128},
issue = {23},
pages = {233602},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Chan, Ming Lai; Aqua, Ziv; Tiranov, Alexey; Dayan, Barak; Lodahl, Peter; Sørensen, Anders S.
Quantum state transfer between a frequency-encoded photonic qubit and a quantum-dot spin in a nanophotonic waveguide Journal Article
In: Phys. Rev. A, vol. 105, iss. 6, pp. 062445, 2022.
@article{Chan2022,
title = {Quantum state transfer between a frequency-encoded photonic qubit and a quantum-dot spin in a nanophotonic waveguide},
author = {Ming Lai Chan and Ziv Aqua and Alexey Tiranov and Barak Dayan and Peter Lodahl and Anders S. Sørensen},
url = {https://link.aps.org/doi/10.1103/PhysRevA.105.062445},
doi = {10.1103/PhysRevA.105.062445},
year = {2022},
date = {2022-06-01},
journal = {Phys. Rev. A},
volume = {105},
issue = {6},
pages = {062445},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Tiurev, Konstantin; Appel, Martin Hayhurst; Mirambell, Pol Llopart; Lauritzen, Mikkel Bloch; Tiranov, Alexey; Lodahl, Peter; Sørensen, Anders Søndberg
High-fidelity multiphoton-entangled cluster state with solid-state quantum emitters in photonic nanostructures Journal Article
In: Phys. Rev. A, vol. 105, iss. 3, pp. L030601, 2022.
@article{Tiurev2022,
title = {High-fidelity multiphoton-entangled cluster state with solid-state quantum emitters in photonic nanostructures},
author = {Konstantin Tiurev and Martin Hayhurst Appel and Pol Llopart Mirambell and Mikkel Bloch Lauritzen and Alexey Tiranov and Peter Lodahl and Anders Søndberg Sørensen},
url = {https://link.aps.org/doi/10.1103/PhysRevA.105.L030601},
doi = {10.1103/PhysRevA.105.L030601},
year = {2022},
date = {2022-03-01},
journal = {Phys. Rev. A},
volume = {105},
issue = {3},
pages = {L030601},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2021
Tiurev, Konstantin; Mirambell, Pol Llopart; Lauritzen, Mikkel Bloch; Appel, Martin Hayhurst; Tiranov, Alexey; Lodahl, Peter; Sørensen, Anders Søndberg
Fidelity of time-bin-entangled multiphoton states from a quantum emitter Journal Article
In: Phys. Rev. A, vol. 104, iss. 5, pp. 052604, 2021.
@article{Tiurev2021,
title = {Fidelity of time-bin-entangled multiphoton states from a quantum emitter},
author = {Konstantin Tiurev and Pol Llopart Mirambell and Mikkel Bloch Lauritzen and Martin Hayhurst Appel and Alexey Tiranov and Peter Lodahl and Anders Søndberg Sørensen},
url = {https://link.aps.org/doi/10.1103/PhysRevA.104.052604},
doi = {10.1103/PhysRevA.104.052604},
year = {2021},
date = {2021-11-01},
journal = {Phys. Rev. A},
volume = {104},
issue = {5},
pages = {052604},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Appel, Martin Hayhurst; Tiranov, Alexey; Javadi, Alisa; Löbl, Matthias C.; Wang, Ying; Scholz, Sven; Wieck, Andreas D.; Ludwig, Arne; Warburton, Richard J.; Lodahl, Peter
Coherent Spin-Photon Interface with Waveguide Induced Cycling Transitions Journal Article
In: Phys. Rev. Lett., vol. 126, iss. 1, pp. 013602, 2021.
@article{Appel2021,
title = {Coherent Spin-Photon Interface with Waveguide Induced Cycling Transitions},
author = {Martin Hayhurst Appel and Alexey Tiranov and Alisa Javadi and Matthias C. Löbl and Ying Wang and Sven Scholz and Andreas D. Wieck and Arne Ludwig and Richard J. Warburton and Peter Lodahl},
url = {https://link.aps.org/doi/10.1103/PhysRevLett.126.013602},
doi = {10.1103/PhysRevLett.126.013602},
year = {2021},
date = {2021-01-01},
journal = {Phys. Rev. Lett.},
volume = {126},
issue = {1},
pages = {013602},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2020
Welinski, Sacha; Tiranov, Alexey; Businger, Moritz; Ferrier, Alban; Afzelius, Mikael; Goldner, Philippe
Coherence Time Extension by Large-Scale Optical Spin Polarization in a Rare-Earth Doped Crystal Journal Article
In: Phys. Rev. X, vol. 10, iss. 3, pp. 031060, 2020.
@article{Welinski2020,
title = {Coherence Time Extension by Large-Scale Optical Spin Polarization in a Rare-Earth Doped Crystal},
author = {Sacha Welinski and Alexey Tiranov and Moritz Businger and Alban Ferrier and Mikael Afzelius and Philippe Goldner},
url = {https://link.aps.org/doi/10.1103/PhysRevX.10.031060},
doi = {10.1103/PhysRevX.10.031060},
year = {2020},
date = {2020-09-01},
journal = {Phys. Rev. X},
volume = {10},
issue = {3},
pages = {031060},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Holzäpfel, Adrian; Etesse, Jean; Kaczmarek, Krzysztof T; Tiranov, Alexey; Gisin, Nicolas; Afzelius, Mikael
Optical storage for 0.53 s in a solid-state atomic frequency comb memory using dynamical decoupling Journal Article
In: New Journal of Physics, vol. 22, no. 6, pp. 063009, 2020.
@article{Holzaepfel2020,
title = {Optical storage for 0.53 s in a solid-state atomic frequency comb memory using dynamical decoupling},
author = {Adrian Holzäpfel and Jean Etesse and Krzysztof T Kaczmarek and Alexey Tiranov and Nicolas Gisin and Mikael Afzelius},
url = {https://dx.doi.org/10.1088/1367-2630/ab8aac},
doi = {10.1088/1367-2630/ab8aac},
year = {2020},
date = {2020-06-01},
journal = {New Journal of Physics},
volume = {22},
number = {6},
pages = {063009},
publisher = {IOP Publishing},
abstract = {Quantum memories with long storage times are key elements in long-distance quantum networks. The atomic frequency comb (AFC) memory in particular has shown great promise to fulfill this role, having demonstrated multimode capacity and spin–photon quantum correlations. However, the memory storage times have so-far been limited to about 1 ms, realized in a Eu3+ doped Y2SiO5 crystal at zero applied magnetic field. Motivated by studies showing increased spin coherence times under applied magnetic field, we developed an AFC spin-wave memory utilizing a weak 15 mT magnetic field in a specific direction that allows efficient optical and spin manipulation for AFC memory operations. With this field configuration the AFC spin-wave storage time increased to 40 ms using a simple spin-echo sequence. Furthermore, by applying dynamical decoupling techniques the spin-wave coherence time reaches 530 ms, a 300-fold increase with respect to previous AFC spin-wave storage experiments. This result paves the way towards long duration storage of quantum information in solid-state ensemble memories.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Quantum memories with long storage times are key elements in long-distance quantum networks. The atomic frequency comb (AFC) memory in particular has shown great promise to fulfill this role, having demonstrated multimode capacity and spin–photon quantum correlations. However, the memory storage times have so-far been limited to about 1 ms, realized in a Eu3+ doped Y2SiO5 crystal at zero applied magnetic field. Motivated by studies showing increased spin coherence times under applied magnetic field, we developed an AFC spin-wave memory utilizing a weak 15 mT magnetic field in a specific direction that allows efficient optical and spin manipulation for AFC memory operations. With this field configuration the AFC spin-wave storage time increased to 40 ms using a simple spin-echo sequence. Furthermore, by applying dynamical decoupling techniques the spin-wave coherence time reaches 530 ms, a 300-fold increase with respect to previous AFC spin-wave storage experiments. This result paves the way towards long duration storage of quantum information in solid-state ensemble memories.
Businger, M.; Tiranov, A.; Kaczmarek, K. T.; Welinski, S.; Zhang, Z.; Ferrier, A.; Goldner, P.; Afzelius, M.
Optical Spin-Wave Storage in a Solid-State Hybridized Electron-Nuclear Spin Ensemble Journal Article
In: Phys. Rev. Lett., vol. 124, iss. 5, pp. 053606, 2020.
@article{Businger2020,
title = {Optical Spin-Wave Storage in a Solid-State Hybridized Electron-Nuclear Spin Ensemble},
author = {M. Businger and A. Tiranov and K. T. Kaczmarek and S. Welinski and Z. Zhang and A. Ferrier and P. Goldner and M. Afzelius},
url = {https://link.aps.org/doi/10.1103/PhysRevLett.124.053606},
doi = {10.1103/PhysRevLett.124.053606},
year = {2020},
date = {2020-02-01},
journal = {Phys. Rev. Lett.},
volume = {124},
issue = {5},
pages = {053606},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2018
Tiranov, Alexey; Ortu, Antonio; Welinski, Sacha; Ferrier, Alban; Goldner, Philippe; Gisin, Nicolas; Afzelius, Mikael
Spectroscopic study of hyperfine properties in $^171mathrmYb^3+:mathrmY_2mathrmSiO_5$ Journal Article
In: Phys. Rev. B, vol. 98, iss. 19, pp. 195110, 2018.
@article{Tiranov2018,
title = {Spectroscopic study of hyperfine properties in $^171mathrmYb^3+:mathrmY_2mathrmSiO_5$},
author = {Alexey Tiranov and Antonio Ortu and Sacha Welinski and Alban Ferrier and Philippe Goldner and Nicolas Gisin and Mikael Afzelius},
url = {https://link.aps.org/doi/10.1103/PhysRevB.98.195110},
doi = {10.1103/PhysRevB.98.195110},
year = {2018},
date = {2018-11-01},
urldate = {2018-11-01},
journal = {Phys. Rev. B},
volume = {98},
issue = {19},
pages = {195110},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Ortu, Antonio; Tiranov, Alexey; Welinski, Sacha; Fröwis, Florian; Gisin, Nicolas; Ferrier, Alban; Goldner, Philippe; Afzelius, Mikael
Simultaneous coherence enhancement of optical and microwave transitions in solid-state electronic spins Journal Article
In: Nature Materials, vol. 17, no. 8, pp. 671-675, 2018, ISSN: 1476-4660.
@article{Ortu2018,
title = {Simultaneous coherence enhancement of optical and microwave transitions in solid-state electronic spins},
author = {Antonio Ortu and Alexey Tiranov and Sacha Welinski and Florian Fröwis and Nicolas Gisin and Alban Ferrier and Philippe Goldner and Mikael Afzelius},
url = {https://doi.org/10.1038/s41563-018-0138-x},
doi = {10.1038/s41563-018-0138-x},
issn = {1476-4660},
year = {2018},
date = {2018-08-01},
journal = {Nature Materials},
volume = {17},
number = {8},
pages = {671-675},
abstract = {Solid-state electronic spins are extensively studied in quantum information science, as their large magnetic moments offer fast operations for computing1 and communication2–4, and high sensitivity for sensing5. However, electronic spins are more sensitive to magnetic noise, but engineering of their spectroscopic properties, for example, using clock transitions and isotopic engineering, can yield remarkable spin coherence times, as for electronic spins in GaAs6, donors in silicon7–11 and vacancy centres in diamond12,13. Here we demonstrate simultaneously induced clock transitions for both microwave and optical domains in an isotopically purified 171Yb3+:Y2SiO5 crystal, reaching coherence times of greater than 100þinspaceμs and 1þinspacems in the optical and microwave domains, respectively. This effect is due to the highly anisotropic hyperfine interaction, which makes each electronic–nuclear state an entangled Bell state. Our results underline the potential of 171Yb3+:Y2SiO5 for quantum processing applications relying on both optical and spin manipulation, such as optical quantum memories4,14, microwave-to-optical quantum transducers15,16, and single-spin detection17, while they should also be observable in a range of different materials with anisotropic hyperfine interactions.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Solid-state electronic spins are extensively studied in quantum information science, as their large magnetic moments offer fast operations for computing1 and communication2–4, and high sensitivity for sensing5. However, electronic spins are more sensitive to magnetic noise, but engineering of their spectroscopic properties, for example, using clock transitions and isotopic engineering, can yield remarkable spin coherence times, as for electronic spins in GaAs6, donors in silicon7–11 and vacancy centres in diamond12,13. Here we demonstrate simultaneously induced clock transitions for both microwave and optical domains in an isotopically purified 171Yb3+:Y2SiO5 crystal, reaching coherence times of greater than 100þinspaceμs and 1þinspacems in the optical and microwave domains, respectively. This effect is due to the highly anisotropic hyperfine interaction, which makes each electronic–nuclear state an entangled Bell state. Our results underline the potential of 171Yb3+:Y2SiO5 for quantum processing applications relying on both optical and spin manipulation, such as optical quantum memories4,14, microwave-to-optical quantum transducers15,16, and single-spin detection17, while they should also be observable in a range of different materials with anisotropic hyperfine interactions.
Cruzeiro, Emmanuel Zambrini; Tiranov, Alexey; Lavoie, Jonathan; Ferrier, Alban; Goldner, Philippe; Gisin, Nicolas; Afzelius, Mikael
Efficient optical pumping using hyperfine levels in 145Nd3+:Y2SiO5 and its application to optical storage Journal Article
In: New Journal of Physics, vol. 20, no. 5, pp. 053013, 2018.
@article{Cruzeiro2018b,
title = {Efficient optical pumping using hyperfine levels in 145Nd3+:Y2SiO5 and its application to optical storage},
author = {Emmanuel Zambrini Cruzeiro and Alexey Tiranov and Jonathan Lavoie and Alban Ferrier and Philippe Goldner and Nicolas Gisin and Mikael Afzelius},
url = {https://dx.doi.org/10.1088/1367-2630/aabe3b},
doi = {10.1088/1367-2630/aabe3b},
year = {2018},
date = {2018-05-01},
journal = {New Journal of Physics},
volume = {20},
number = {5},
pages = {053013},
publisher = {IOP Publishing},
abstract = {Efficient optical pumping is an important tool for state initialization in quantum technologies, such as optical quantum memories. In crystals doped with Kramers rare-earth ions, such as erbium and neodymium, efficient optical pumping is challenging due to the relatively short population lifetimes of the electronic Zeeman levels, of the order of 100 ms at around 4 K. In this article we show that optical pumping of the hyperfine levels in isotopically enriched 145Nd :Y2SiO5 crystals is more efficient, owing to the longer population relaxation times of hyperfine levels. By optically cycling the population many times through the excited state a nuclear spin flip can be forced in the ground state hyperfine manifold, in which case the population is trapped for several seconds before relaxing back to the pumped hyperfine level. To demonstrate the effectiveness of this approach in applications we perform an atomic frequency comb memory experiment with 33% storage efficiency in 145Nd :Y2SiO5, which is on a par with results obtained in non-Kramers ions, e.g. europium and praseodymium, where optical pumping is generally efficient due to the quenched electronic spin. Efficient optical pumping in neodymium-doped crystals is also of interest for spectral filtering in biomedical imaging, as neodymium has an absorption wavelength compatible with tissue imaging. In addition to these applications, our study is of interest for understanding spin dynamics in Kramers ions with nuclear spin.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Efficient optical pumping is an important tool for state initialization in quantum technologies, such as optical quantum memories. In crystals doped with Kramers rare-earth ions, such as erbium and neodymium, efficient optical pumping is challenging due to the relatively short population lifetimes of the electronic Zeeman levels, of the order of 100 ms at around 4 K. In this article we show that optical pumping of the hyperfine levels in isotopically enriched 145Nd :Y2SiO5 crystals is more efficient, owing to the longer population relaxation times of hyperfine levels. By optically cycling the population many times through the excited state a nuclear spin flip can be forced in the ground state hyperfine manifold, in which case the population is trapped for several seconds before relaxing back to the pumped hyperfine level. To demonstrate the effectiveness of this approach in applications we perform an atomic frequency comb memory experiment with 33% storage efficiency in 145Nd :Y2SiO5, which is on a par with results obtained in non-Kramers ions, e.g. europium and praseodymium, where optical pumping is generally efficient due to the quenched electronic spin. Efficient optical pumping in neodymium-doped crystals is also of interest for spectral filtering in biomedical imaging, as neodymium has an absorption wavelength compatible with tissue imaging. In addition to these applications, our study is of interest for understanding spin dynamics in Kramers ions with nuclear spin.
Cruzeiro, Emmanuel Zambrini; Etesse, Jean; Tiranov, Alexey; Bourdel, Pierre-Antoine; Fröwis, Florian; Goldner, Philippe; Gisin, Nicolas; Afzelius, Mikael
Characterization of the hyperfine interaction of the excited $^5mathrmD_0$ state of $mathrmEu^3+:mathrmY_2mathrmSiO_5$ Journal Article
In: Phys. Rev. B, vol. 97, iss. 9, pp. 094416, 2018.
@article{Cruzeiro2018,
title = {Characterization of the hyperfine interaction of the excited $^5mathrmD_0$ state of $mathrmEu^3+:mathrmY_2mathrmSiO_5$},
author = {Emmanuel Zambrini Cruzeiro and Jean Etesse and Alexey Tiranov and Pierre-Antoine Bourdel and Florian Fröwis and Philippe Goldner and Nicolas Gisin and Mikael Afzelius},
url = {https://link.aps.org/doi/10.1103/PhysRevB.97.094416},
doi = {10.1103/PhysRevB.97.094416},
year = {2018},
date = {2018-03-01},
journal = {Phys. Rev. B},
volume = {97},
issue = {9},
pages = {094416},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2017
Fröwis, Florian; Strassmann, Peter C.; Tiranov, Alexey; Gut, Corentin; Lavoie, Jonathan; Brunner, Nicolas; Bussières, Félix; Afzelius, Mikael; Gisin, Nicolas
Experimental certification of millions of genuinely entangled atoms in a solid Journal Article
In: Nature Communications, vol. 8, no. 1, pp. 907, 2017, ISSN: 2041-1723.
@article{Froewis2017,
title = {Experimental certification of millions of genuinely entangled atoms in a solid},
author = {Florian Fröwis and Peter C. Strassmann and Alexey Tiranov and Corentin Gut and Jonathan Lavoie and Nicolas Brunner and Félix Bussières and Mikael Afzelius and Nicolas Gisin},
url = {https://doi.org/10.1038/s41467-017-00898-6},
doi = {10.1038/s41467-017-00898-6},
issn = {2041-1723},
year = {2017},
date = {2017-10-13},
journal = {Nature Communications},
volume = {8},
number = {1},
pages = {907},
abstract = {Quantum theory predicts that entanglement can also persist in macroscopic physical systems, albeit difficulties to demonstrate it experimentally remain. Recently, significant progress has been achieved and genuine entanglement between up to 2900 atoms was reported. Here, we demonstrate 16 million genuinely entangled atoms in a solid-state quantum memory prepared by the heralded absorption of a single photon. We develop an entanglement witness for quantifying the number of genuinely entangled particles based on the collective effect of directed emission combined with the non-classical nature of the emitted light. The method is applicable to a wide range of physical systems and is effective even in situations with significant losses. Our results clarify the role of multipartite entanglement in ensemble-based quantum memories and demonstrate the accessibility to certain classes of multipartite entanglement with limited experimental control.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Quantum theory predicts that entanglement can also persist in macroscopic physical systems, albeit difficulties to demonstrate it experimentally remain. Recently, significant progress has been achieved and genuine entanglement between up to 2900 atoms was reported. Here, we demonstrate 16 million genuinely entangled atoms in a solid-state quantum memory prepared by the heralded absorption of a single photon. We develop an entanglement witness for quantifying the number of genuinely entangled particles based on the collective effect of directed emission combined with the non-classical nature of the emitted light. The method is applicable to a wide range of physical systems and is effective even in situations with significant losses. Our results clarify the role of multipartite entanglement in ensemble-based quantum memories and demonstrate the accessibility to certain classes of multipartite entanglement with limited experimental control.
Tiranov, Alexey; Designolle, Sébastien; Cruzeiro, Emmanuel Zambrini; Lavoie, Jonathan; Brunner, Nicolas; Afzelius, Mikael; Huber, Marcus; Gisin, Nicolas
Quantification of multidimensional entanglement stored in a crystal Journal Article
In: Phys. Rev. A, vol. 96, iss. 4, pp. 040303, 2017.
@article{Tiranov2017,
title = {Quantification of multidimensional entanglement stored in a crystal},
author = {Alexey Tiranov and Sébastien Designolle and Emmanuel Zambrini Cruzeiro and Jonathan Lavoie and Nicolas Brunner and Mikael Afzelius and Marcus Huber and Nicolas Gisin},
url = {https://link.aps.org/doi/10.1103/PhysRevA.96.040303},
doi = {10.1103/PhysRevA.96.040303},
year = {2017},
date = {2017-10-01},
journal = {Phys. Rev. A},
volume = {96},
issue = {4},
pages = {040303},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Cruzeiro, E. Zambrini; Tiranov, A.; Usmani, I.; Laplane, C.; Lavoie, J.; Ferrier, A.; Goldner, P.; Gisin, N.; Afzelius, M.
Spectral hole lifetimes and spin population relaxation dynamics in neodymium-doped yttrium orthosilicate Journal Article
In: Phys. Rev. B, vol. 95, iss. 20, pp. 205119, 2017.
@article{Cruzeiro2017,
title = {Spectral hole lifetimes and spin population relaxation dynamics in neodymium-doped yttrium orthosilicate},
author = {E. Zambrini Cruzeiro and A. Tiranov and I. Usmani and C. Laplane and J. Lavoie and A. Ferrier and P. Goldner and N. Gisin and M. Afzelius},
url = {https://link.aps.org/doi/10.1103/PhysRevB.95.205119},
doi = {10.1103/PhysRevB.95.205119},
year = {2017},
date = {2017-05-01},
journal = {Phys. Rev. B},
volume = {95},
issue = {20},
pages = {205119},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Martin, Anthony; Guerreiro, Thiago; Tiranov, Alexey; Designolle, Sébastien; Fröwis, Florian; Brunner, Nicolas; Huber, Marcus; Gisin, Nicolas
Quantifying Photonic High-Dimensional Entanglement Journal Article
In: Phys. Rev. Lett., vol. 118, iss. 11, pp. 110501, 2017.
@article{Martin2017,
title = {Quantifying Photonic High-Dimensional Entanglement},
author = {Anthony Martin and Thiago Guerreiro and Alexey Tiranov and Sébastien Designolle and Florian Fröwis and Nicolas Brunner and Marcus Huber and Nicolas Gisin},
url = {https://link.aps.org/doi/10.1103/PhysRevLett.118.110501},
doi = {10.1103/PhysRevLett.118.110501},
year = {2017},
date = {2017-03-01},
journal = {Phys. Rev. Lett.},
volume = {118},
issue = {11},
pages = {110501},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2016
Tiranov, Alexey; Strassmann, Peter C.; Lavoie, Jonathan; Brunner, Nicolas; Huber, Marcus; Verma, Varun B.; Nam, Sae Woo; Mirin, Richard P.; Lita, Adriana E.; Marsili, Francesco; Afzelius, Mikael; Bussières, Félix; Gisin, Nicolas
Temporal Multimode Storage of Entangled Photon Pairs Journal Article
In: Phys. Rev. Lett., vol. 117, iss. 24, pp. 240506, 2016.
@article{Tiranov2016b,
title = {Temporal Multimode Storage of Entangled Photon Pairs},
author = {Alexey Tiranov and Peter C. Strassmann and Jonathan Lavoie and Nicolas Brunner and Marcus Huber and Varun B. Verma and Sae Woo Nam and Richard P. Mirin and Adriana E. Lita and Francesco Marsili and Mikael Afzelius and Félix Bussières and Nicolas Gisin},
url = {https://link.aps.org/doi/10.1103/PhysRevLett.117.240506},
doi = {10.1103/PhysRevLett.117.240506},
year = {2016},
date = {2016-12-01},
journal = {Phys. Rev. Lett.},
volume = {117},
issue = {24},
pages = {240506},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Tiranov, A
Exploring storage capability of a solid-state quantum memory for light Diploma Thesis
2016.
@diplomathesis{Tiranov2016c,
title = {Exploring storage capability of a solid-state quantum memory for light},
author = {A Tiranov},
url = {https://archive-ouverte.unige.ch/unige:89502},
doi = {10.13097/archive-ouverte/unige:89502},
year = {2016},
date = {2016-10-06},
urldate = {2016-10-06},
issue = {Sc. 4993},
abstract = {The present thesis includes a series of experiments exploring the potential of using rare-earth ion-doped crystals as a light-matter quantum interface using different quantum states of light as a probe resource. We start with the realization of an elementary quantum repeater block, implementing quantum teleportation of a polarization qubit into a solid-state quantum memory based on a yttrium-orthosilicate crystal doped with neodymium ions. The storage of an hyperentangled state of light compatible with long-distance quantum communication was demonstrated to show the potential of using this quantum memory for quantum purification techniques. To explore the temporal multiplexing capability of atomic frequency combs in atomic ensembles we performed temporal multimode storage of multi-photon entangled state of light. Such a temporal multimode capacity together with the developed novel theoretical techniques allowed us to show the storage of more than one bit of entanglement (ebit) using multi-photon and multi-dimensional entangled photon states.},
keywords = {},
pubstate = {published},
tppubtype = {diplomathesis}
}
The present thesis includes a series of experiments exploring the potential of using rare-earth ion-doped crystals as a light-matter quantum interface using different quantum states of light as a probe resource. We start with the realization of an elementary quantum repeater block, implementing quantum teleportation of a polarization qubit into a solid-state quantum memory based on a yttrium-orthosilicate crystal doped with neodymium ions. The storage of an hyperentangled state of light compatible with long-distance quantum communication was demonstrated to show the potential of using this quantum memory for quantum purification techniques. To explore the temporal multiplexing capability of atomic frequency combs in atomic ensembles we performed temporal multimode storage of multi-photon entangled state of light. Such a temporal multimode capacity together with the developed novel theoretical techniques allowed us to show the storage of more than one bit of entanglement (ebit) using multi-photon and multi-dimensional entangled photon states.
Tiranov, Alexey; Lavoie, Jonathan; Strassmann, Peter C.; Sangouard, Nicolas; Afzelius, Mikael; Bussières, Félix; Gisin, Nicolas
Demonstration of Light-Matter Micro-Macro Quantum Correlations Journal Article
In: Phys. Rev. Lett., vol. 116, iss. 19, pp. 190502, 2016.
@article{Tiranov2016,
title = {Demonstration of Light-Matter Micro-Macro Quantum Correlations},
author = {Alexey Tiranov and Jonathan Lavoie and Peter C. Strassmann and Nicolas Sangouard and Mikael Afzelius and Félix Bussières and Nicolas Gisin},
url = {https://link.aps.org/doi/10.1103/PhysRevLett.116.190502},
doi = {10.1103/PhysRevLett.116.190502},
year = {2016},
date = {2016-05-01},
journal = {Phys. Rev. Lett.},
volume = {116},
issue = {19},
pages = {190502},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2015
Tiranov, Alexey; Lavoie, Jonathan; Ferrier, Alban; Goldner, Philippe; Verma, Varun B.; Nam, Sae Woo; Mirin, Richard P.; Lita, Adriana E.; Marsili, Francesco; Herrmann, Harald; Silberhorn, Christine; Gisin, Nicolas; Afzelius, Mikael; Bussières, Félix
Storage of hyperentanglement in a solid-state quantum memory Journal Article
In: Optica, vol. 2, no. 4, pp. 279–287, 2015.
@article{Tiranov2015,
title = {Storage of hyperentanglement in a solid-state quantum memory},
author = {Alexey Tiranov and Jonathan Lavoie and Alban Ferrier and Philippe Goldner and Varun B. Verma and Sae Woo Nam and Richard P. Mirin and Adriana E. Lita and Francesco Marsili and Harald Herrmann and Christine Silberhorn and Nicolas Gisin and Mikael Afzelius and Félix Bussières},
url = {https://opg.optica.org/optica/abstract.cfm?URI=optica-2-4-279},
doi = {10.1364/OPTICA.2.000279},
year = {2015},
date = {2015-04-01},
journal = {Optica},
volume = {2},
number = {4},
pages = {279–287},
publisher = {Optica Publishing Group},
abstract = {Two photons can simultaneously share entanglement between several degrees of freedom such as polarization, energy-time, spatial mode, and orbital angular momentum. This resource is known as hyperentanglement, and it has been shown to be an important tool for optical quantum information processing. Here we demonstrate the quantum storage and retrieval of photonic hyperentanglement in a solid-state quantum memory. A pair of photons entangled in polarization and energy-time is generated such that one photon is stored in the quantum memory, while the other photon has a telecommunication wavelength suitable for transmission in optical fiber. We measured violations of a Clauser–Horne–Shimony–Holt Bell inequality for each degree of freedom, independently of the other one, which proves the successful storage and retrieval of the two bits of entanglement shared by the photons. Our scheme is compatible with long-distance quantum communication in optical fiber, and is in particular suitable for linear-optical entanglement purification for quantum repeaters.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Two photons can simultaneously share entanglement between several degrees of freedom such as polarization, energy-time, spatial mode, and orbital angular momentum. This resource is known as hyperentanglement, and it has been shown to be an important tool for optical quantum information processing. Here we demonstrate the quantum storage and retrieval of photonic hyperentanglement in a solid-state quantum memory. A pair of photons entangled in polarization and energy-time is generated such that one photon is stored in the quantum memory, while the other photon has a telecommunication wavelength suitable for transmission in optical fiber. We measured violations of a Clauser–Horne–Shimony–Holt Bell inequality for each degree of freedom, independently of the other one, which proves the successful storage and retrieval of the two bits of entanglement shared by the photons. Our scheme is compatible with long-distance quantum communication in optical fiber, and is in particular suitable for linear-optical entanglement purification for quantum repeaters.
2014
Bussières, Félix; Clausen, Christoph; Tiranov, Alexey; Korzh, Boris; Verma, Varun B.; Nam, Sae Woo; Marsili, Francesco; Ferrier, Alban; Goldner, Philippe; Herrmann, Harald; Silberhorn, Christine; Sohler, Wolfgang; Afzelius, Mikael; Gisin, Nicolas
Quantum teleportation from a telecom-wavelength photon to a solid-state quantum memory Journal Article
In: Nature Photonics, vol. 8, no. 10, pp. 775-778, 2014, ISSN: 1749-4893.
@article{Bussieres2014,
title = {Quantum teleportation from a telecom-wavelength photon to a solid-state quantum memory},
author = {Félix Bussières and Christoph Clausen and Alexey Tiranov and Boris Korzh and Varun B. Verma and Sae Woo Nam and Francesco Marsili and Alban Ferrier and Philippe Goldner and Harald Herrmann and Christine Silberhorn and Wolfgang Sohler and Mikael Afzelius and Nicolas Gisin},
url = {https://doi.org/10.1038/nphoton.2014.215},
doi = {10.1038/nphoton.2014.215},
issn = {1749-4893},
year = {2014},
date = {2014-10-01},
journal = {Nature Photonics},
volume = {8},
number = {10},
pages = {775-778},
abstract = {Quantum teleportation of the state of a qubit encoded in the polarization state is demonstrated from a telecom-wavelength photon to a solid-state quantum memory via 24.8 km of optical fibre. It is the longest distance ever reached in a teleportation experiment involving a quantum memory.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Quantum teleportation of the state of a qubit encoded in the polarization state is demonstrated from a telecom-wavelength photon to a solid-state quantum memory via 24.8 km of optical fibre. It is the longest distance ever reached in a teleportation experiment involving a quantum memory.
Clausen, C; Bussières, F; Tiranov, A; Herrmann, H; Silberhorn, C; Sohler, W; Afzelius, M; Gisin, N
A source of polarization-entangled photon pairs interfacing quantum memories with telecom photons Journal Article
In: New Journal of Physics, vol. 16, no. 9, pp. 093058, 2014.
@article{Clausen2014,
title = {A source of polarization-entangled photon pairs interfacing quantum memories with telecom photons},
author = {C Clausen and F Bussières and A Tiranov and H Herrmann and C Silberhorn and W Sohler and M Afzelius and N Gisin},
url = {https://dx.doi.org/10.1088/1367-2630/16/9/093058},
doi = {10.1088/1367-2630/16/9/093058},
year = {2014},
date = {2014-09-01},
journal = {New Journal of Physics},
volume = {16},
number = {9},
pages = {093058},
publisher = {IOP Publishing},
abstract = {We present a source of polarization-entangled photon pairs suitable for the implementation of long-distance quantum communication protocols using quantum memories. Photon pairs with wavelengths 883 nm and 1338 nm are produced by coherently pumping two periodically poled nonlinear waveguides embedded in the arms of a polarization interferometer. Subsequent spectral filtering reduces the bandwidth of the photons to 240 MHz. The bandwidth is well-matched to a quantum memory based on an Nd:YSO crystal, to which, in addition, the center frequency of the 883 nm photons is actively stabilized. A theoretical model that includes the effect of the filtering is presented and accurately fits the measured correlation functions of the generated photons. The model can also be used as a way to properly assess the properties of the source. The quality of the entanglement is revealed by a visibility of in a Bell-type experiment and through the violation of a Bell inequality.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
We present a source of polarization-entangled photon pairs suitable for the implementation of long-distance quantum communication protocols using quantum memories. Photon pairs with wavelengths 883 nm and 1338 nm are produced by coherently pumping two periodically poled nonlinear waveguides embedded in the arms of a polarization interferometer. Subsequent spectral filtering reduces the bandwidth of the photons to 240 MHz. The bandwidth is well-matched to a quantum memory based on an Nd:YSO crystal, to which, in addition, the center frequency of the 883 nm photons is actively stabilized. A theoretical model that includes the effect of the filtering is presented and accurately fits the measured correlation functions of the generated photons. The model can also be used as a way to properly assess the properties of the source. The quality of the entanglement is revealed by a visibility of in a Bell-type experiment and through the violation of a Bell inequality.
Tiranov, A. D.; Kalachev, A. A.
Collective spontaneous emission in a waveguide with a near-zero refractive index Journal Article
In: Bulletin of the Russian Academy of Sciences: Physics, vol. 78, no. 3, pp. 176-179, 2014, ISSN: 1934-9432.
@article{Tiranov2014,
title = {Collective spontaneous emission in a waveguide with a near-zero refractive index},
author = {A. D. Tiranov and A. A. Kalachev},
url = {https://doi.org/10.3103/S1062873814030216},
doi = {10.3103/S1062873814030216},
issn = {1934-9432},
year = {2014},
date = {2014-03-01},
journal = {Bulletin of the Russian Academy of Sciences: Physics},
volume = {78},
number = {3},
pages = {176-179},
abstract = {The optimum conditions for observing superradiance and subradiance effects in an ensemble of two-level atoms, placed in a waveguide cladding with a metamaterial with near-zero refractive index, are discussed.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The optimum conditions for observing superradiance and subradiance effects in an ensemble of two-level atoms, placed in a waveguide cladding with a metamaterial with near-zero refractive index, are discussed.
2012
Tiranov, A. D.; Filippov, V. L.
Calculating the spectral density of the radiant intensity of the plumes of solid-fuel rocket engines Journal Article
In: J. Opt. Technol., vol. 79, no. 3, pp. 184–188, 2012.
@article{Tiranov2012,
title = {Calculating the spectral density of the radiant intensity of the plumes of solid-fuel rocket engines},
author = {A. D. Tiranov and V. L. Filippov},
url = {https://opg.optica.org/jot/abstract.cfm?URI=jot-79-3-184},
doi = {10.1364/JOT.79.000184},
year = {2012},
date = {2012-03-01},
journal = {J. Opt. Technol.},
volume = {79},
number = {3},
pages = {184–188},
publisher = {Optica Publishing Group},
abstract = {This paper proposes a model for calculating the characteristics of the radiation of solid-fuel rocket engines (SFREs). The plume of an SFRE is regarded as a gas-dynamic system in which the characteristics of the rocket flight and the distribution profiles of the speed, density, and temperature are linked with the parameters of the gas at the engine's nozzle section. A basis is provided for the assumptions that have been made to simplify the computational procedure for the plume in its various projections. Calculations of the spatial brightness distributions of the plumes under various conditions showed that the model is adequate when compared with the experimental data.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
This paper proposes a model for calculating the characteristics of the radiation of solid-fuel rocket engines (SFREs). The plume of an SFRE is regarded as a gas-dynamic system in which the characteristics of the rocket flight and the distribution profiles of the speed, density, and temperature are linked with the parameters of the gas at the engine’s nozzle section. A basis is provided for the assumptions that have been made to simplify the computational procedure for the plume in its various projections. Calculations of the spatial brightness distributions of the plumes under various conditions showed that the model is adequate when compared with the experimental data.
Tiranov, A. D.; Karimullin, K. R.; Samartsev, V. V.
Simulation of coherent responses of resonant media excited by a series of ultrashort laser pulses Journal Article
In: Bulletin of the Russian Academy of Sciences: Physics, vol. 76, no. 3, pp. 299-302, 2012, ISSN: 1934-9432.
@article{Tiranov2012b,
title = {Simulation of coherent responses of resonant media excited by a series of ultrashort laser pulses},
author = {A. D. Tiranov and K. R. Karimullin and V. V. Samartsev},
url = {https://doi.org/10.3103/S1062873812030331},
doi = {10.3103/S1062873812030331},
issn = {1934-9432},
year = {2012},
date = {2012-03-01},
journal = {Bulletin of the Russian Academy of Sciences: Physics},
volume = {76},
number = {3},
pages = {299-302},
abstract = {A technique for the numerical simulation of coherent optical responses of the photon echo type formed in resonance media with strong inhomogeneous broadening under the action of femtosecond laser pulses is developed. This approach is based on solving the Maxwell-Bloch equations using the finite-difference time-domain (FDTD) method without application of a fast rotating field and slowly varying envelope approximations. The method can be used to simulate coherent responses in different resonance media with a complex structure of energy levels. The technique was validated using the example of describing experiments on narrowing a photon echo pulse and femtosecond echo processing.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
A technique for the numerical simulation of coherent optical responses of the photon echo type formed in resonance media with strong inhomogeneous broadening under the action of femtosecond laser pulses is developed. This approach is based on solving the Maxwell-Bloch equations using the finite-difference time-domain (FDTD) method without application of a fast rotating field and slowly varying envelope approximations. The method can be used to simulate coherent responses in different resonance media with a complex structure of energy levels. The technique was validated using the example of describing experiments on narrowing a photon echo pulse and femtosecond echo processing.
Zuikov, V. A.; Kalachev, A. A.; Karimullin, K. R.; Mitrofanova, T. G.; Samartsev, V. V.; Tiranov, A. D.; Shegeda, A. M.
Multichannel information processing in the optical echo-processors on the basis of Van-Fleck paramagnet crystals Journal Article
In: Bulletin of the Russian Academy of Sciences: Physics, vol. 76, no. 3, pp. 283-289, 2012, ISSN: 1934-9432.
@article{Zuikov2012,
title = {Multichannel information processing in the optical echo-processors on the basis of Van-Fleck paramagnet crystals},
author = {V. A. Zuikov and A. A. Kalachev and K. R. Karimullin and T. G. Mitrofanova and V. V. Samartsev and A. D. Tiranov and A. M. Shegeda},
url = {https://doi.org/10.3103/S1062873812030422},
doi = {10.3103/S1062873812030422},
issn = {1934-9432},
year = {2012},
date = {2012-03-01},
journal = {Bulletin of the Russian Academy of Sciences: Physics},
volume = {76},
number = {3},
pages = {283-289},
abstract = {The analysis of various modes of multichannel information recording and readout in conditions of a stimulated (accumulated and long-living) photon echo in the crystals doped with rare earth ions which are known as Van-Fleck paramagnets has been performed in order to utilize them in the operation of low-temperature optical echo-processors.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The analysis of various modes of multichannel information recording and readout in conditions of a stimulated (accumulated and long-living) photon echo in the crystals doped with rare earth ions which are known as Van-Fleck paramagnets has been performed in order to utilize them in the operation of low-temperature optical echo-processors.
2009
Zuikov, V. A.; Kalachev, A. A.; Karimullin, K. R.; Samartsev, V. V.; Tiranov, A. D.
Formation of photonic echo signals in the presents of a strong concentration quenching effect Journal Article
In: Bulletin of the Russian Academy of Sciences: Physics, vol. 73, no. 12, pp. 1665-1670, 2009, ISSN: 1934-9432.
@article{Zuikov2009,
title = {Formation of photonic echo signals in the presents of a strong concentration quenching effect},
author = {V. A. Zuikov and A. A. Kalachev and K. R. Karimullin and V. V. Samartsev and A. D. Tiranov},
url = {https://doi.org/10.3103/S1062873809120260},
doi = {10.3103/S1062873809120260},
issn = {1934-9432},
year = {2009},
date = {2009-12-01},
journal = {Bulletin of the Russian Academy of Sciences: Physics},
volume = {73},
number = {12},
pages = {1665-1670},
abstract = {The connection between the photonic echo formation in crystals doped by rare-earth elements and the concentration effects was studied. The application of optical echo spectroscopy in studies of garnet crystals with a high content of thulium impurity was demonstrated. By the example of activated crystals of ruby and lanthanum trifluoride, the spectral transformation of the photonic echo signals was analyzed in the present of the concentration quenching effect.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The connection between the photonic echo formation in crystals doped by rare-earth elements and the concentration effects was studied. The application of optical echo spectroscopy in studies of garnet crystals with a high content of thulium impurity was demonstrated. By the example of activated crystals of ruby and lanthanum trifluoride, the spectral transformation of the photonic echo signals was analyzed in the present of the concentration quenching effect.
Tiranov, A. D.; Karimullin, K. R.; Samartsev, V. V.
Numerical Modelling of a Photon Echo in Two-Level Systems Journal Article
In: Kazan. Gos. Univ. Uchen. Zap. Ser. Fiz.-Mat. Nauki, vol. 151, iss. 1, pp. 197–203, 2009.
@article{Tiranov2009,
title = {Numerical Modelling of a Photon Echo in Two-Level Systems},
author = {A. D. Tiranov and K. R. Karimullin and V. V. Samartsev},
url = {https://www.mathnet.ru/eng/uzku/v151/i1/p197},
year = {2009},
date = {2009-09-01},
urldate = {2009-09-01},
journal = {Kazan. Gos. Univ. Uchen. Zap. Ser. Fiz.-Mat. Nauki},
volume = {151},
issue = {1},
pages = {197–203},
abstract = {Simulation of photon echo-signal generation in impurity samples (ruby type) was carried out. The mathematical model of interaction of electromagnetic radiation with a system of two-level atoms based on Maxwell–Bloch equations has been constructed. For numerical solution of the received system the method of forecast and correction on the basis of modified Euler's method was used. The program realizing the computing experiment has been developed and calculation of the two-pulse photon echo in two-level system (ruby) has been carried out.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Simulation of photon echo-signal generation in impurity samples (ruby type) was carried out. The mathematical model of interaction of electromagnetic radiation with a system of two-level atoms based on Maxwell–Bloch equations has been constructed. For numerical solution of the received system the method of forecast and correction on the basis of modified Euler's method was used. The program realizing the computing experiment has been developed and calculation of the two-pulse photon echo in two-level system (ruby) has been carried out.