0210014v1

related topics
{state, states, coherent}
{information, entropy, channel}
{photon, photons, single}
{key, protocol, security}
{error, code, errors}
{entanglement, phys, rev}
{measurement, state, measurements}

Binary communication in entangled channels

Matteo G A Paris

abstract: We analyze optical binary communication assisted by entanglement and show that: i) ideal entangled channels have smaller error probability than ideal single-mode coherent channels if the photon number of the channel is larger than one; ii) realistic entangled channels with heterodyne receivers have smaller error probability than ideal single-mode coherent channels if the photon number of the channel is larger than a threshold of about five photons.

oai_identifier:
oai:arXiv.org:quant-ph/0210014
categories:
quant-ph
comments:
Contribution to QCMC 2002
arxiv_id:
quant-ph/0210014
created:
2002-10-02

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