Average entropy of a quantum subsystem
Average entropy of a quantum subsystem
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DOI:
10.1103/physrevlett.77.1
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发表时间:
1996-07-01
影响因子:
8.6
通讯作者:
Sen, S
中科院分区:
文献类型:
--
作者:
Sen, S
It was recently conjectured by D. Page that if a quantum system of Hilbert space dimension nm is in a random pure state then the average entropy of a subsystem of dimension m where m less than or equal to n is S-m,S-n = (Sigma(k=n+1)(mn) 1/k) - (m - 1)/2n. In this Letter a simple proof of this conjecture is given.