PROOF OF PAGES CONJECTURE ON THE AVERAGE ENTROPY OF A SUBSYSTEM

PROOF OF PAGES CONJECTURE ON THE AVERAGE ENTROPY OF A SUBSYSTEM
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DOI:
10.1103/physrevlett.72.1148
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发表时间:
1994-02-21
影响因子:
8.6
通讯作者:
KANNO, S
KANNO, S
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
FOONG, SK;KANNO, S

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页面最近被删除[物理。71,1291(1993)],如果希尔伯特空间维数mn的量子系统处于随机纯态,则维数m小于或等于n的子系统的平均熵由Sm,n = Sigma(k=n1)(mn)1/k-m-1/2n给出。我们概述了这个优雅的公式的证明。
Page conjectured very recently [Phys. Rev, Lett. 71, 1291 (1993)] that if a quantum system of Hilbert space dimension mn is in a random pure state, the average entropy of a subsystem of dimension m less than or equal to n is given by Sm,n = Sigma(k=n1)(mn)1/k-m-1/2n. We outline a proof of this elegant formula.