Quantum entropy-typical subspace and universal data compression
classification
🪐 quant-ph
cs.ITmath.IT
keywords
entropyentropy-typicalsubspacecompressionneumannquantumuniversalapproximately
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The quantum entropy-typical subspace theory is specified. It is shown that any mixed state with von Neumann entropy less than h can be preserved approximately by the entropy-typical subspace with entropy= h. This result implies an universal compression scheme for the case that the von Neumann entropy of the source does not exceed h.
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