The Generating Functional of the Non-Equilibrium Process: The Case of Macrovariable

Autor:	Hitoshi Higurashi, Masayoshi Sumino, Reijiro Fukuda
Rok vydání:	1991
Předmět:	Physics Physics and Astronomy (miscellaneous) Simple (abstract algebra) Path integral formulation Process (computing) Initial value problem Propagator Equations of motion Statistical physics Expression (computer science) Representation (mathematics)
Zdroj:	Progress of Theoretical Physics. 86:617-651
ISSN:	1347-4081 0033-068X
Popis:	The generating functional of the non-equilibrium process is discussed and applied to the macroscopic system in order to derive the equation of motion of the macrovariables. The detailed diagrammatical rule for evaluating the generating functional is given for the arbitrary initial distribution. The propagator which is independent of the initial condition is shown to contain only a single retarded propagator. For the case of macrovariables a compact expression for the generating functional is obtained. A simple example is also discussed
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b7d50ffebd14c034c71f2ae2a13dda3d https://doi.org/10.1143/ptp/86.3.617 Zobrazit plný text záznamu