9806065v1

related topics
{information, entropy, channel}
{key, protocol, security}
{error, code, errors}
{let, theorem, proof}
{entanglement, phys, rev}
{state, states, coherent}
{state, phys, rev}
{level, atom, field}

Quantum Rate-Distortion Coding

Howard Barnum

abstract: I introduce rate-distortion theory for quantum coding, and derive a lower bound, involving the coherent information, on the rate at which qubits must be used to encode a quantum source with a given maximum level of distortion per source emission. The convexity of the "information rate-distortion function" which defines this bound is also derived.

oai_identifier:
oai:arXiv.org:quant-ph/9806065
categories:
quant-ph
comments:
LaTeX, 6 pages, preliminary version
arxiv_id:
quant-ph/9806065
report_no:
HC-QI-001
created:
1998-06-19

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