Physics – Quantum Physics
Scientific paper
1998-06-19
Physics
Quantum Physics
LaTeX, 6 pages, preliminary version
Scientific paper
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.
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