Deriving Boltzmann equations from Kadanoff-Baym equations in curved space-time
Deriving Boltzmann equations from Kadanoff-Baym equations in curved space-time
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从弯曲时空的 Kadanoff-Baym 方程推导玻尔兹曼方程
DOI：
10.1103/physrevd.78.085027
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发表时间：
2008
影响因子：
5
通讯作者：
M. Lindner
中科院分区：
文献类型：
--
作者：
A. Hohenegger;A. Kartavtsev;M. Lindner
本文考虑弯曲时空中Kadanoff-Baym方程到量子动力学方程再到Boltzmann方程的过渡。正如人们从一般考虑所期望的那样，导出的方程似乎是闵可夫斯基时空中相应方程的协变推广。的形式主义将被应用到测试近似通常在计算的重子不对称性的leptogenesis的情况下。
In this paper we consider the transition from the Kadanoff-Baym equations to the quantum kinetic equations and then to the Boltzmann equation in curved space-time. As one expects from general considerations, the derived equations appear to be covariant generalizations of the corresponding equations in Minkowski space-time. The formalism will be applied to test approximations commonly made in the computation of the baryon asymmetry in the leptogenesis scenario.