Green's functions in quantum physics
Green's functions in quantum physics
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DOI：
10.1007/978-3-662-11900-6
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发表时间：
1979
期刊：
影响因子：
--
通讯作者：
E. Economou
中科院分区：
文献类型：
--
作者：
E. Economou
本书的主要部分是研究最简单的一类格林函数，即具有a函数源的线性微分方程的解。结果表明，这些熟悉的格林函数是获得散射和束缚级信息等基本问题相对简单和一般解的有力工具。束缚水平的处理提供了一个清晰的物理理解“困难”的问题，如超导，近藤效应，以及，在较小程度上，无序诱导的定位。多体格林函数的更高级的主题在本书的最后一部分提出。
The main part of this book is devoted to the simplest kind of Green's functions, namely the solutions of linear differential equations with a-function source. It is shown that these familiar Green's functions are a powerful tool for obtaining relatively simple and general solutions of basic problems such as scattering and bound-level information. The bound-level treatment gives a clear physical understanding of" difficult" questions such as superconductivity, the Kondo effect, and, to a lesser degree, disorder-induced localization. The more advanced subject of many-body Green's functions is presented in the last part of the book.