On a quantum Boltzmann equation for a gas of photons.

被引:39
|
作者
Escobedo, M
Mischler, S
机构
[1] Univ Basque Country, Dept Matemat, E-48080 Bilbao, Spain
[2] Univ Versailles, CNRS, UMR 7641, Lab Math Appl, F-78035 Versailles, France
来源
关键词
Boltzmann equation; quantum particles; Bose-Einstein condensation phenomena; long time; behavior; Kompaneets equation;
D O I
10.1016/S0021-7824(00)01201-0
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We prove existence and uniqueness of the solution of a homogeneous quantum Boltzmann equation describing the photon-electron interaction. We study the asymptotic behaviour of the solutions, and show in particular, that the photon density distribution condensates at the origin asymptotically in time when the total number of photons is larger than a given positive constant. We also recover the Kompaneets equation as a Fokker-Planck type limit of this Boltzmann model. (C) 2001 Editions scientifiques et medicales Elsevier SAS.
引用
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页码:471 / 515
页数:45
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