Quantum fingerprinting without a shared phase reference

2017 ◽  
Author(s):  
Michał Lipka ◽  
Michał Jachura ◽  
Marcin Jarzyna ◽  
Konrad Banaszek
Keyword(s):  
Quantum Fingerprinting

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 Quantum Fingerprinting

2001 ◽  
Vol 87 (16) ◽  
Author(s):  
Harry Buhrman ◽  
Richard Cleve ◽  
John Watrous ◽  
Ronald de Wolf
Keyword(s):  
Quantum Fingerprinting

scholarly journals Families of quantum fingerprinting protocols

2018 ◽  
Vol 97 (3) ◽  
Author(s):  
Benjamin Lovitz ◽  
Norbert Lütkenhaus
Keyword(s):  
Quantum Fingerprinting

scholarly journals Experimental quantum fingerprinting with weak coherent pulses

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Feihu Xu ◽  
Juan Miguel Arrazola ◽  
Kejin Wei ◽  
Wenyuan Wang ◽  
Pablo Palacios-Avila ◽  
...  
Keyword(s):  
Quantum Fingerprinting

scholarly journals Quantum fingerprinting using two-photon interference

2017 ◽  
Vol 25 (22) ◽  
pp. 27475 ◽  
Author(s):  
Michał Jachura ◽  
Michał Lipka ◽  
Marcin Jarzyna ◽  
Konrad Banaszek
Keyword(s):  
Two Photon ◽  
Quantum Fingerprinting
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