Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Krzysztof T Kaczmarek"'
Autor:
Adrian Holzäpfel, Jean Etesse, Krzysztof T Kaczmarek, Alexey Tiranov, Nicolas Gisin, Mikael Afzelius
Publikováno v:
New Journal of Physics, Vol 22, Iss 6, p 063009 (2020)
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 q
Externí odkaz:
https://doaj.org/article/a3697b970c764322b347964cbfaf6efc
Publikováno v:
New Journal of Physics, Vol 18, Iss 10, p 109502 (2016)
Externí odkaz:
https://doaj.org/article/ae844d6f5a9142bfa25bab9b6cd7046f
Publikováno v:
New Journal of Physics, Vol 18, Iss 9, p 093030 (2016)
We show that cold Rydberg gases enable an efficient six-wave mixing process where terahertz or microwave fields are coherently converted into optical fields and vice versa. This process is made possible by the long lifetime of Rydberg states, the str
Externí odkaz:
https://doaj.org/article/3826338313da4c5d9035abbf4b2468dd
Autor:
Tomasz Krehlik, Artur Stabrawa, Rafał Gartman, Krzysztof T. Kaczmarek, Robert Löw, Adam Wojciechowski
Preparation of an atomic ensemble in a particular Zeeman state is a critical step of many protocols for implementing quantum sensors and quantum memories. These devices can also benefit from optical fiber integration. In this work we describe experim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97d971b3e9b06d92bd3ceb809a67dd86
https://ruj.uj.edu.pl/xmlui/handle/item/307450
https://ruj.uj.edu.pl/xmlui/handle/item/307450
Autor:
Alexey Tiranov, Mikael Afzelius, Nicolas Gisin, Jean Etesse, Krzysztof T. Kaczmarek, Adrian Holzäpfel
Publikováno v:
New Journal of Physics, Vol. 22, No 6 (2020) P. 063009
New Journal of Physics
Holzäpfel, A, Etesse, J, Kaczmarek, K T, Tiranov, A, Gisin, N & Afzelius, M 2020, ' Optical storage for 0.53 s in a solid-state atomic frequency comb memory using dynamical decoupling ', New Journal of Physics, vol. 22, no. 6, 063009 . https://doi.org/10.1088/1367-2630/ab8aac
Holzäpfel, A, Etesse, J, Kaczmarek, K T, Tiranov, A, Gisin, N & Afzelius, M 2019, ' Optical storage for 0.53 seconds in a solid-state atomic frequency comb memory using dynamical decoupling ', New J. Phys. . https://doi.org/10.1088/1367-2630/ab8aac
New Journal of Physics
Holzäpfel, A, Etesse, J, Kaczmarek, K T, Tiranov, A, Gisin, N & Afzelius, M 2020, ' Optical storage for 0.53 s in a solid-state atomic frequency comb memory using dynamical decoupling ', New Journal of Physics, vol. 22, no. 6, 063009 . https://doi.org/10.1088/1367-2630/ab8aac
Holzäpfel, A, Etesse, J, Kaczmarek, K T, Tiranov, A, Gisin, N & Afzelius, M 2019, ' Optical storage for 0.53 seconds in a solid-state atomic frequency comb memory using dynamical decoupling ', New J. Phys. . https://doi.org/10.1088/1367-2630/ab8aac
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 q
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bdfe7b8040d9275879d10dccef4992c0
https://archive-ouverte.unige.ch/unige:137309
https://archive-ouverte.unige.ch/unige:137309
Autor:
Krzysztof T. Kaczmarek, O. Lazo-Arjona, Dylan J. Saunders, Benjamin Brecht, Joshua Nunn, S. E. Thomas, Ian A. Walmsley, Shaobo Gao, Patrick M. Ledingham
Publikováno v:
Physical Review Letters
Gao, S, Lazo-Arjona, O, Brecht, B, Kaczmarek, K T, Thomas, S E, Nunn, J, Ledingham, P M, Saunders, D J & Walmsley, I A 2019, ' Optimal Coherent Filtering for Single Noisy Photons ', Physical Review Letters, vol. 123, no. 21, 213604 . https://doi.org/10.1103/PhysRevLett.123.213604
Gao, S, Lazo-Arjona, O, Brecht, B, Kaczmarek, K T, Thomas, S E, Nunn, J, Ledingham, P M, Saunders, D J & Walmsley, I A 2019, ' Optimal Coherent Filtering for Single Noisy Photons ', Physical Review Letters, vol. 123, no. 21, 213604 . https://doi.org/10.1103/PhysRevLett.123.213604
We introduce a filter using a noise-free quantum buffer with large optical bandwidth that can both filter temporal-spectral modes, as well as inter-convert them and change their frequency. We show that such quantum buffers optimally filter out tempor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65c1a517114c51f82c5dffbae07f7461
http://ora.ox.ac.uk/objects/uuid:
http://ora.ox.ac.uk/objects/uuid:
Autor:
Sacha Welinski, Krzysztof T. Kaczmarek, Philippe Goldner, Moritz Businger, Mikael Afzelius, Z. Zhang, Alexey Tiranov, Alban Ferrier
Publikováno v:
Businger, M, Tiranov, A, Kaczmarek, K T, Welinski, S, Zhang, Z, Ferrier, A, Goldner, P & Afzelius, M 2020, ' Optical Spin-Wave Storage in a Solid-State Hybridized Electron-Nuclear Spin Ensemble ', Physical Review Letters, vol. 124, no. 5, 053606 . https://doi.org/10.1103/PhysRevLett.124.053606
Physical Review Letters
Physical Review Letters, American Physical Society, 2020, 124 (5), pp.053606. ⟨10.1103/PhysRevLett.124.053606⟩
Physical Review Letters, Vol. 124, No 053606 (2020)
Businger, M, Tiranov, A, Kaczmarek, K T, Welinski, S, Ferrier, A, Goldner, P & Afzelius, M 2019, ' Optical spin-wave storage in a solid-state hybridized electron-nuclear spin ensemble ', Phys. Rev. Lett. . https://doi.org/10.1103/PhysRevLett.124.053606
Physical Review Letters
Physical Review Letters, American Physical Society, 2020, 124 (5), pp.053606. ⟨10.1103/PhysRevLett.124.053606⟩
Physical Review Letters, Vol. 124, No 053606 (2020)
Businger, M, Tiranov, A, Kaczmarek, K T, Welinski, S, Ferrier, A, Goldner, P & Afzelius, M 2019, ' Optical spin-wave storage in a solid-state hybridized electron-nuclear spin ensemble ', Phys. Rev. Lett. . https://doi.org/10.1103/PhysRevLett.124.053606
Solid-state impurity spins with optical control are currently investigated for quantum networks and repeaters. Among these, rare-earth-ion doped crystals are promising as quantum memories for light, with potentially long storage time, high multimode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b13e8a8afe15aa1b8eb670f8ead82537
http://arxiv.org/abs/1907.11571
http://arxiv.org/abs/1907.11571
Autor:
Patrick M. Ledingham, Dylan J. Saunders, Krzysztof T. Kaczmarek, Benjamin Brecht, S. E. Thomas, O. Lazo-Arjona, Joshua Nunn, I. A. Walmsley, Shaobo Gao
Publikováno v:
Quantum Information and Measurement (QIM) V: Quantum Technologies.
We propose a quantum buffer which optimally filters the temporal-spectral mode of single photon source. We theoretically show that using a Cs vapour, an increase of indistinguishably with minimal loss of brightness can be achieved.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::824c47e9f7e6bc8f3d32a75a78e8ab3e
https://doi.org/10.1364/qim.2019.s4a.3
https://doi.org/10.1364/qim.2019.s4a.3
Autor:
I. A. Walmsley, Joshua Nunn, Raam Uzdin, Krzysztof T. Kaczmarek, C. Weinzetl, Eilon Poem, Jonas Nils Becker, Dylan J. Saunders, J. Klatzow, Patrick M. Ledingham
Publikováno v:
Symposium Latsis 2019 on Diamond Photonics - Physics, Technologies and Applications.
We use an ensemble of nitrogen-vacancy centers in diamond for implementing two types of quantum heat engines. We experimentally demonstrate: (i) a power increase due to coherence, and (ii) the equivalence of the two engine types at small actions. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e88ca990122895292e1a3e04a4bcb137
https://doi.org/10.1364/dp.2019.17
https://doi.org/10.1364/dp.2019.17
Autor:
Joshua Nunn, Benjamin Brecht, J. H. D. Munns, Amir Feizpour, O. Lazo-Arjona, S. E. Thomas, Krzysztof T. Kaczmarek, Ian A. Walmsley, G. S. Thekkadath, Patrick M. Ledingham, Eilon Poem, Dylan J. Saunders
Publikováno v:
Physical Review A
Quantum networks promise to revolutionise computing, simulation, and communication. Light is the ideal information carrier for quantum networks, as its properties are not degraded by noise in ambient conditions, and it can support large bandwidths en
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::641ecd85c3821bc0c8f76162fd3f4799
https://doi.org/10.1103/physreva.97.042316
https://doi.org/10.1103/physreva.97.042316