PMID: 15245064Jul 13, 2004Paper

Experimental demonstration of entanglement-enhanced classical communication over a quantum channel with correlated noise

Physical Review Letters
Konrad BanaszekCzesław Radzewicz

Abstract

We present an experiment demonstrating the entanglement enhanced capacity of a quantum channel with correlated noise, modeled by a fiber optic link exhibiting fluctuating birefringence. In this setting, introducing entanglement between two photons is required to maximize the amount of information that can be encoded into their joint polarization degree of freedom. We demonstrated this effect using a fiber-coupled source of entangled photon pairs based on spontaneous parametric down-conversion, and a linear-optics Bell state measurement. The obtained experimental classical capacity with entangled states is equal to 0.82+/-0.04 per a photon pair, and it exceeds approximately 2.5 times the theoretical upper limit when no quantum correlations are allowed.

References

Mar 1, 1995·Physical Review. a·S L Braunstein, A Mann
Nov 2, 1987·Physical Review Letters·C K HongL Mandel
Mar 4, 1991·Physical Review Letters·A Peres, W K Wootters
Aug 5, 1991·Physical Review Letters·A K Ekert
Jun 17, 1996·Physical Review Letters·K MattleA Zeilinger
Sep 16, 2000·Physical Review Letters·T JenneweinA Zeilinger
Sep 16, 2000·Physical Review Letters·D S NaikP G Kwiat
Sep 16, 2000·Physical Review Letters·W TittelN Gisin
Oct 20, 2000·Science·P G KwiatA G White
May 7, 2003·Physical Review Letters·Mikio FujiwaraMasahide Sasaki
Aug 9, 2003·Physical Review Letters·Stephen D BartlettRobert W Spekkens
Feb 3, 2004·Physical Review Letters·V GiovannettiH P Yuen

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Citations

Jan 30, 2016·Science Advances·Jin-Shi XuGuang-Can Guo
Aug 11, 2005·Physical Review Letters·G J PrydeStephen D Bartlett
Oct 10, 2006·Physical Review Letters·G Gordon, G Kurizki
Mar 13, 2019·Scientific Reports·Youngmin Jeong, Hyundong Shin
Aug 8, 2009·Physical Review Letters·Giuliano BenentiGiuseppe Falci
Apr 7, 2010·Physical Review Letters·F CarusoG M Palma
Oct 13, 2007·Physical Review Letters·M B Plenio, S Virmani
Nov 19, 2013·Physical Review Letters·Mikael LassenUlrik L Andersen
Apr 7, 2010·Physical Review Letters·Cosmo LupoStefano Mancini
Jan 15, 2011·Physical Review Letters·A ChiuriP Mataloni

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