Cumulant expansions in statistical and quantum physics

Autor:	H. A. Gersch
Rok vydání:	1991
Předmět:	Physics Quantization (physics) Classical mechanics Quantum dynamics Quantum mechanics General Physics and Astronomy Statistical mechanics Relativistic quantum mechanics Supersymmetric quantum mechanics Statistical physics Quantum dissipation Quantum statistical mechanics Imaginary time
Zdroj:	American Journal of Physics. 59:273-277
ISSN:	1943-2909 0002-9505
DOI:	10.1119/1.16576
Popis:	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 the t matrix.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b9eeeb9bed20efdc1a22e8dd976353a8 https://doi.org/10.1119/1.16576 Zobrazit plný text záznamu