首页   按字顺浏览 期刊浏览 卷期浏览 Cumulant expansions in statistical and quantum physics
Cumulant expansions in statistical and quantum physics

 

作者: H. A. Gersch,  

 

期刊: American Journal of Physics  （AIP Available online 1991）
卷期: Volume 59, issue 3  

页码: 273-277

 

ISSN:0002-9505

 

年代: 1991

 

DOI:10.1119/1.16576

 

出版商: American Association of Physics Teachers

 

关键词: STATISTICAL MECHANICS;TWO−BODY PROBLEM;QUANTUM MECHANICS;S MATRIX;SPECTRAL SHIFT;SERIES EXPANSION;VIRIAL EQUATION

 

数据来源: AIP

 

摘要:

Two examples are given of the use of cumulant expansions for systems of particles with hard‐core two‐body interactions. One of these, in classical statistical mechanics, is shown to lead to virial coefficients. An analogous procedure in quantum mechanics produces energy level shifts due to hard‐core interactions that are expressed in terms of thetmatrix.

 

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