scholarly journals One-way deterministic secure quantum communication protocol based on single photons

2010 ◽  
Vol 59 (4) ◽  
pp. 2493
Author(s):  
Quan Dong-Xiao ◽  
Pei Chang-Xing ◽  
Liu Dan ◽  
Zhao Nan
Keyword(s):  
Quantum Communication ◽  
Communication Protocol ◽  
Single Photons ◽  
Deterministic Secure Quantum Communication ◽  
Quantum Communication Protocol

A DETERMINISTIC SECURE QUANTUM COMMUNICATION PROTOCOL THROUGH A COLLECTIVE ROTATION NOISE CHANNEL

2010 ◽  
Vol 08 (08) ◽  
pp. 1389-1395 ◽  
Author(s):  
HAI-KUAN DONG ◽  
LI DONG ◽  
XIAO-MING XIU ◽  
YA-JUN GAO
Keyword(s):  
Quantum Communication ◽  
Communication Protocol ◽  
Single Photon ◽  
Secret Message ◽  
Deterministic Secure Quantum Communication ◽  
Collective Rotation ◽  
Collective Rotation Noise ◽  
Quantum Communication Protocol ◽  
Security Check

A deterministic secure quantum communication protocol against collective rotation noise is proposed. If the security check is passed, the receiver can obtain a one-bit secret message with the aid of a one-bit classical message for two photons. It does not need a photon storing technique and only single photon measurement is necessary.

scholarly journals Efficient quantum communication under collective noise

2013 ◽  
Vol 13 (3&4) ◽  
pp. 290-323
Author(s):  
Michael Skotiniotis ◽  
Wolfgang Dur ◽  
Barbara Kraus
Keyword(s):  
Quantum Information ◽  
Discrete Group ◽  
Quantum Communication ◽  
Communication Protocol ◽  
Transmission Rate ◽  
Collective Noise ◽  
Cyclic Groups ◽  
Time Encoding ◽  
Decoherence Free Subspace ◽  
Quantum Communication Protocol

We introduce a new quantum communication protocol for the transmission of quantum information under collective noise. Our protocol utilizes a decoherence-free subspace in such a way that an optimal asymptotic transmission rate is achieved, while at the same time encoding and decoding operations can be efficiently implemented. The encoding and decoding circuit requires a number of elementary gates that scale linearly with the number of transmitted qudits, $m$. The logical depth of our encoding and decoding operations is constant and depends only on the channel in question. For channels described by an arbitrary discrete group $G$, i.e.~with a discrete number, $\lvert G\rvert$, of possible noise operators, perfect transmission at a rate $m/(m+r)$ is achieved with an overhead that scales at most as $\mathcal{O}(d^r)$ where the number of auxiliary qudits, $r$, depends solely on the group in question. Moreover, this overhead is independent of the number of transmitted qudits, $m$. For certain groups, e.g.~cyclic groups, we find that the overhead scales only linearly with the number of group elements $|G|$.

scholarly journals Distributed construction of quantum fingerprints

2004 ◽  
Vol 4 (2) ◽  
pp. 146-151
Author(s):  
A. Ambainis ◽  
Y-Y Shi
Keyword(s):  
Quantum Communication ◽  
Communication Protocol ◽  
Physical Review ◽  
Communication Problem ◽  
Classical Protocol ◽  
Quantum Communication Protocol

Quantum fingerprints are useful quantum encodings introduced by Buhrman, Cleve, Watrous and de Wolf (Physical Review Letters, Volume 87, Number 16, Article 167902, 2001) to obtain an efficient quantum communication protocol. We design a protocol for constructing the fingerprint in a distributed scenario. As an application, this protocol gives rise to a communication protocol more efficient than the best known classical protocol for a communication problem.

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