DEFINING QUANTUM DYNAMICAL ENTROPY

被引：93

作者：

ALICKI, R

FANNES, M

机构：

[1] Institute of Theoretical Physics, University of Leuven, Heverlee

来源：

LETTERS IN MATHEMATICAL PHYSICS | 1994年 / 32卷 / 01期

关键词：

D O I：

10.1007/BF00761125

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose an elementary definition of the dynamical entropy for a discrete-time quantum dynamical system. We apply our construction to classical dynamical systems and to the shift on a quantum spin chain. In the first case, we recover the Kolmogorov-Sinai invariant and, for the second, we find the mean entropy of the invariant state plus the logarithm of the dimension of the single-spin space.

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页码：75 / 82

页数：8

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