Entropy of Quantum Measurement
نویسنده
چکیده
A notion of entropy of a normal state on a finite von Neumann algebra in Segal’s sense is considered, and its superadditivity is proven together with a necessary and sufficient condition for its additivity. Bounds on the entropy of the state after measurement are obtained, and it is shown that a weakly repeatable measurement gives minimal entropy and that a minimal state entropy measurement satisfying some natural additional conditions is repeatable.
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ورودعنوان ژورنال:
- Entropy
دوره 17 شماره
صفحات -
تاریخ انتشار 2015