Between entropy and subentropy
نویسندگان
چکیده
The von Neumann entropy and the subentropy of a mixed quantum state are upper and lower bounds, respectively, on the accessible information of any ensemble consistent with the given mixed state. Here we define and investigate a set of quantities intermediate between entropy and subentropy. PACS numbers: 03.67.-a, 89.70.+c, 65.40.Gr 1 1 Entropy and subentropy The von Neumann entropy of a quantum state ρ can be defined as S(ρ) = −tr ρ ln ρ = − n
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ورودعنوان ژورنال:
- Quantum Information & Computation
دوره 3 شماره
صفحات -
تاریخ انتشار 2003