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arXiv 0909.3620cond-mat.stat-mech
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非广延量子系统中的广义信息熵:插值方法

Generalized information entropies in nonextensive quantum systems: The interpolation approach

Hideo Hasegawa

摘要:

本文讨论了非广延量子系统中的广义von Neumann(Tsallis)熵和广义Fisher信息(GFI),利用插值近似(IA),在$O(q-1)$内和高、低温极限下得到了很好的结果,$q$是熵指数[H. E 80(2009)011126]。本文从度量性质和Cramér-Rao定理的角度讨论了非广延统计学中提出的三类广义随机变量。对电子带模型和德拜声子模型进行了$q$ -和温度相关的Tsallis熵和GFI的数值计算。

英文摘要:

We discuss the generalized von Neumann (Tsallis) entropy and the generalized Fisher information (GFI) in nonextensive quantum systems, by using the interpolation approximation (IA) which has been shown to yield good results for the quantal distributions within $O(q-1)$ and in high- and low-temperature limits, $q$ being the entropic index [H. Hasegawa, Phys. Rev. E 80 (2009) 011126]. Three types of GFIs which have been proposed so far in the nonextensive statistics, are discussed from the viewpoint of their metric properties and the Cramér-Rao theorem. Numerical calculations of the $q$- and temperature-dependent Tsallis entropy and GFIs are performed for the electron band model and the Debye phonon model.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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