Quantum Rate-Distortion Coding
Abstract
Description
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.
LaTeX, 6 pages, preliminary version
LaTeX, 6 pages, preliminary version