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quant-ph2008
Reply to "Comment on "On a new definition of quantum entropy""
Michele Campisi
The example provided in the comment [arXiv:0803.2241] concerns a situation where the system is initially at negative temperature. It is known that in such cases the Law of Entropy…
quant-ph2008★ 26 cited
On a new definition of quantum entropy
Michele Campisi
It is proved here that, as a consequence of the unitary quantum evolution, the expectation value of a properly defined quantum entropy operator (as opposed to the non-evolving von…