Optimal compression for identically prepared qubit states

Giulio Chiribella; Masahito Hayashi; Yuxiang Yang

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Optimal compression for identically prepared qubit states

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arxiv 1606.02893 v3 pith:P63V6JQV submitted 2016-06-09 quant-ph cs.ITmath-phmath.ITmath.MP

Yuxiang Yang , Giulio Chiribella , Masahito Hayashi This is my paper

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keywords compressionidenticallylimitsoptimalpreparedapplicationattainedcloning

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We establish the ultimate limits to the compression of sequences of identically prepared qubits. The limits are determined by Holevo's information quantity and are attained through use of the optimal universal cloning machine, which finds here a novel application to quantum Shannon theory.

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