scholarly journals Efficient experimental quantum fingerprinting with channel multiplexing and simultaneous detection

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xiaoqing Zhong ◽  
Feihu Xu ◽  
Hoi-Kwong Lo ◽  
Li Qian
Keyword(s):  
Communication Complexity ◽  
Single Photon ◽  
Simultaneous Detection ◽  
Minimum Amount ◽  
Photon Detectors ◽  
Communication Time ◽  
Quantum Communication Complexity ◽  
Detection Of Signals ◽  
Coherent Quantum ◽  
Quantum Fingerprinting

AbstractQuantum communication complexity explores the minimum amount of communication required to achieve certain tasks using quantum states. One representative example is quantum fingerprinting, in which the minimum amount of communication could be exponentially smaller than the classical fingerprinting. Here, we propose a quantum fingerprinting protocol where coherent states and channel multiplexing are used, with simultaneous detection of signals carried by multiple channels. Compared with an existing coherent quantum fingerprinting protocol, our protocol could consistently reduce communication time and the amount of communication by orders of magnitude by increasing the number of channels. Our proposed protocol can even beat the classical limit without using superconducting-nanowire single photon detectors. We also report a proof-of-concept experimental demonstration with six wavelength channels to validate the advantage of our protocol in the amount of communication. The experimental results clearly prove that our protocol not only surpasses the best-known classical protocol, but also remarkably outperforms the existing coherent quantum fingerprinting protocol.

scholarly journals Nanoscale functionalized superconducting transport channels as photon detectors

2021 ◽  
Vol 103 (13) ◽  
Author(s):  
Catalin D. Spataru ◽  
François Léonard
Keyword(s):  
Photon Detectors ◽  
Transport Channels

FIB-SEM as a tool for characterizing single-photon detectors

2010 ◽  
Author(s):  
Anna Vilà ◽  
Juan Trenado ◽  
Albert Comerma ◽  
David Gascon ◽  
Anna Arbat ◽  
...  
Keyword(s):  
Single Photon ◽  
Photon Detectors ◽  
Single Photon Detectors

Development of hybrid photon detectors with integrated silicon pixel readout for the RICH counters of LHCb

1999 ◽  
Vol 46 (6) ◽  
pp. 1901-1906 ◽  
Author(s):  
M. Alemi ◽  
M. Campbell ◽  
F. Formenti ◽  
T. Gys ◽  
D. Piedigrossi ◽  
...  
Keyword(s):  
Photon Detectors ◽  
The Rich

scholarly journals Spatially dependent sensitivity of superconducting meanders as single-photon detectors

2012 ◽  
Vol 100 (26) ◽  
pp. 262603 ◽  
Author(s):  
G. R. Berdiyorov ◽  
M. V. Milošević ◽  
F. M. Peeters
Keyword(s):  
Single Photon ◽  
Photon Detectors ◽  
Single Photon Detectors

Quantum-dot photon detectors

Physics Today ◽  
2005 ◽  
Vol 58 (4) ◽  
pp. 9-9
Author(s):  
Phillip F. Schewe
Keyword(s):  
Quantum Dot ◽  
Photon Detectors

scholarly journals Superconducting nanowire single-photon detectors with non-periodic dielectric multilayers

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Taro Yamashita ◽  
Kentaro Waki ◽  
Shigehito Miki ◽  
Robert A. Kirkwood ◽  
Robert H. Hadfield ◽  
...  
Keyword(s):  
Single Photon ◽  
Photon Detectors ◽  
Single Photon Detectors ◽  
Superconducting Nanowire

scholarly journals Electrothermal feedback in superconducting nanowire single-photon detectors

2009 ◽  
Vol 79 (10) ◽  
Author(s):  
Andrew J. Kerman ◽  
Joel K. W. Yang ◽  
Richard J. Molnar ◽  
Eric A. Dauler ◽  
Karl K. Berggren
Keyword(s):  
Single Photon ◽  
Photon Detectors ◽  
Single Photon Detectors ◽  
Superconducting Nanowire
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