most citedHow to detect a possible correlation from the information of a sub-system in quantum mechanical systems

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quant-ph2007★ 11 cited

How to detect a possible correlation from the information of a sub-system in quantum mechanical systems

Gen Kimura, Hiromichi Ohno, Hiroyuki Hayashi

A possibility to detect correlations between two quantum mechanical systems only from the information of a subsystem is investigated. For generic cases, we prove that there exist c…

quant-ph2003

Kraus representation in the presence of initial correlations

Hiroyuki Hayashi, Gen Kimura, Yukihiro Ota

We examine the validity of the Kraus representation in the presence of initial correlations and show that it is assured only when a joint dynamics is locally unitary.