Zobrazeno 1 - 10
of 165
pro vyhledávání: '"Konrad Banaszek"'
Autor:
Michał Jachura, Radosław Chrapkiewicz, Rafał Demkowicz-Dobrzański, Wojciech Wasilewski, Konrad Banaszek
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-10 (2016)
Quantum interferometry suffers from residual distinguishability between input photons. Here, the authors show theoretically and experimentally, in a two-photon measurement, how to overcome this by manipulating additional degrees of freedom.
Externí odkaz:
https://doaj.org/article/dbbe9d7af63643a688a02420a613ad7b
Autor:
Jan Kołodyński, Alejandro Máttar, Paul Skrzypczyk, Erik Woodhead, Daniel Cavalcanti, Konrad Banaszek, Antonio Acín
Publikováno v:
Quantum, Vol 4, p 260 (2020)
$\textit{Device-independent quantum key distribution}$ protocols allow two honest users to establish a secret key with minimal levels of trust on the provider, as security is proven without any assumption on the inner working of the devices used for
Externí odkaz:
https://doaj.org/article/c5d7de31f12545ed99848689677ac8dd
Publikováno v:
New Journal of Physics, Vol 22, Iss 4, p 043010 (2020)
We consider a communication scenario where classical information is encoded in an ensemble of quantum states that admit a power series expansion in a cost parameter and converge to a single zero cost state with vanishing cost. For a given measurement
Externí odkaz:
https://doaj.org/article/0b5d707cc91748059ae9ca1d81124586
Publikováno v:
New Journal of Physics, Vol 19, Iss 7, p 073013 (2017)
We analyse the phase space representation of the optimal measurement of a phase shift in an interferometer with equal photon loss in both its arms. In the local phase estimation scenario with a fixed number of photons, we identify features of the spi
Externí odkaz:
https://doaj.org/article/89b86e59558b4ee88b868b681cc58d1c
Autor:
Konrad Banaszek, Michael G. Raymer
Publikováno v:
Quantum Computing, Communication, and Simulation II.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44b282a326fd84a23dbeb679ec44fd0f
https://doi.org/10.1117/12.2606844
https://doi.org/10.1117/12.2606844
Publikováno v:
IEEE Journal on Selected Areas in Communications. 38:496-505
Quantum fingerprinting reduces communication complexity of determination whether two $n$ -bit long inputs are equal or different in the simultaneous message passing model. Here we quantify the advantage of quantum fingerprinting over classical protoc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb256cc48bed3ee3b787670bfaf1bb28
https://doi.org/10.1109/jsac.2020.2968996
https://doi.org/10.1109/jsac.2020.2968996
Long-distance fiber communication stands as a cornerstone of modern technology. One of the underlying principles, preventing signal levels from diminishing below the detectability threshold, is optical amplification. In particular, phase-sensitive am
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0811340ed15e4d85882c0dca53b05e2
Publikováno v:
IEEE Communications Letters. :1-1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3abfd7fc5b99feccec7113e9225f6a0a
https://doi.org/10.1109/lcomm.2023.3273305
https://doi.org/10.1109/lcomm.2023.3273305
We analyze theoretically optimal operation of an optical key distribution (OKD) link based on fine intensity modulation of an optical signal transmitted over an attenuating channel to a direct detection receiver. With suitable digital postprocessing,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b41c02d842748cd074630c7dcb2dd585
http://arxiv.org/abs/2109.12335
http://arxiv.org/abs/2109.12335
Autor:
Wojciech Wasilewski, Michał Parniak, Mateusz Mazelanik, Konrad Banaszek, Adam Leszczyński, Michał Lipka
Publikováno v:
Quantum Communications and Quantum Imaging XIX.
The concept of temporal imaging draws from the analogy between paraxial propagation of light in space and in dispersive media. So far, temporal imaging has been demonstrated with ultrafast light, corresponding to spectral precision in the THz range.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec6f1249cd3e0c7a8a54627dcbdcdcdc
https://doi.org/10.1117/12.2594654
https://doi.org/10.1117/12.2594654