0603024v2

related topics
{state, states, coherent}
{information, entropy, channel}
{key, protocol, security}
{entanglement, phys, rev}
{time, decoherence, evolution}
{state, phys, rev}

Privacy of a lossy bosonic memory channel

G. Ruggeri, S. Mancini

abstract: We study the security of the information transmission between two honest parties realized through a lossy bosonic memory channel when losses are captured by a dishonest party. We then show that entangled inputs can enhance the private information of such a channel, which however does never overcome that of unentangled inputs in absence of memory.

oai_identifier:
oai:arXiv.org:quant-ph/0603024
categories:
quant-ph
comments:
RevTex file, 4 pages, 2 figures
doi:
10.1016/j.physleta.2006.10.037
arxiv_id:
quant-ph/0603024
journal_ref:
Physics Letters A 362, 340-343 (2007)
created:
2006-03-03
updated:
2006-09-14

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