Fisher information, Wehrl entropy, and Landau diamagnetism

被引：15

作者：

Curilef, S

Pennini, F

Plastino, A

机构：

[1] Univ Catolica Norte, Dept Fis, Antofagasta, Chile

[2] Natl Univ La Plata, Inst Fis La Plata, RA-1900 La Plata, Argentina

[3] Argentine Natl Res Council CONICET, RA-1900 La Plata, Argentina

来源：

PHYSICAL REVIEW B | 2005年 / 71卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.71.024420

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Using information theoretic quantities like the Wehrl entropy and Fisher's information measure we study the thermodynamics of the problem leading to Landau's diamagnetism, namely, a free spinless electron in a uniform magnetic field. We reveal a new Fisher-uncertainty relation, derived via the Cramer-Rao inequality, that involves phase space localization and energy fluctuations.

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页数：5

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