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Logically reversible measurements: Construction and application

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arxiv 1511.03773 v6 pith:6J5ERWEE submitted 2015-11-12 quant-ph

Logically reversible measurements: Construction and application

Sunho Kim , Juncheng Wang , Asutosh Kumar , Akihito Soeda , Junde Wu This is my paper
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keywords measurementlogicallyreversiblemeasurementsneumannquantumapplicationcompact
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We show that for any von Neumann measurement, we can construct a logically reversible measurement such that Shannon entropies and quantum discords induced by the two measurements have compact connections. In particular, we prove that quantum discord for the logically reversible measurement is never less than that for the von Neumann measurement.

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