Effect of decoherence in quantum reading with phase shift keying signal of entangled coherent states

Kentaro Kato; Osamu Hirota

doi:10.1117/12.2023151

26 September 2013 Effect of decoherence in quantum reading with phase shift keying signal of entangled coherent states

Kentaro Kato, Osamu Hirota

Proceedings Volume 8875, Quantum Communications and Quantum Imaging XI; 88750P (2013) https://doi.org/10.1117/12.2023151
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

It has been reported that error-free quantum reading of a classical digital memory is possible when the entangled coherent state |a〉 |a〉– |– a〉|–a〉 is used as the probe state for quantum reading with binary phase shift keying format under the assumption that the channel is noiseless [quant-ph/1108.4163v2]. In this paper, the theoretical performance limits of the minimum error probability and classical capacity of quantum reading with binary phase shift keying entangled coherent state signal are investigated in the presence of channel loss.

Citation Download Citation

Kentaro Kato and Osamu Hirota "Effect of decoherence in quantum reading with phase shift keying signal of entangled coherent states", Proc. SPIE 8875, Quantum Communications and Quantum Imaging XI, 88750P (26 September 2013); https://doi.org/10.1117/12.2023151

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