On transport theory of Bose systems. I

Wolfgang Götze

doi:10.1007/BF01375502

On transport theory of Bose systems. I

Wolfgang Götze

TUM Emeriti of Excellence

Research output: Contribution to journal › Article › peer-review

Abstract

The concept of thermodynamical correlation functions for non-equilibrium states used by Kadanoff and Baym in transport theory is generalized by means of Bogoliubov's quasi-averages in order to describe transport phenomena in systems with Bose-Einstein condensation. The one-particle Green's function is decomposed in one part describing the condensed particles and a second one describing the elementary excitations. The coupled equations of motion for these functions are derived and some consequences for the case of slowly varying disturbances are discussed.

Original language	English
Pages (from-to)	300-319
Number of pages	20
Journal	Zeitschrift für Physik
Volume	177
Issue number	3
DOIs	https://doi.org/10.1007/BF01375502
State	Published - Jun 1964

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abstract = "The concept of thermodynamical correlation functions for non-equilibrium states used by Kadanoff and Baym in transport theory is generalized by means of Bogoliubov's quasi-averages in order to describe transport phenomena in systems with Bose-Einstein condensation. The one-particle Green's function is decomposed in one part describing the condensed particles and a second one describing the elementary excitations. The coupled equations of motion for these functions are derived and some consequences for the case of slowly varying disturbances are discussed.",

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year = "1964",

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AB - The concept of thermodynamical correlation functions for non-equilibrium states used by Kadanoff and Baym in transport theory is generalized by means of Bogoliubov's quasi-averages in order to describe transport phenomena in systems with Bose-Einstein condensation. The one-particle Green's function is decomposed in one part describing the condensed particles and a second one describing the elementary excitations. The coupled equations of motion for these functions are derived and some consequences for the case of slowly varying disturbances are discussed.

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On transport theory of Bose systems. I

Abstract

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