Calculation of the average Green's function of electrons in a stochastic medium via higher-dimensional bosonization

被引:6
作者
Kopietz, P
机构
[1] Inst. für Theoretische Physik, Universität Göttingen, D-37073 Göttingen
关键词
D O I
10.1088/0953-8984/8/49/036
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The disorder-averaged single-particle Green's function of electrons subject to a time-dependent random potential with long-range spatial correlations is calculated by means of bosonization in arbitrary dimensions. For static disorder our method is equivalent to conventional perturbation theory based on the lowest-order Born approximation. For dynamic disorder, however, we obtain a new non-perturbative expression for the average Green's function. Bosonization also provides a solid microscopic basis for the description of the quantum dynamics of an interacting many-body system via an effective stochastic model with Gaussian probability distribution.
引用
收藏
页码:10483 / 10491
页数:9
相关论文
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