Criterion for validity of many-body perturbation theory of the electron gas.
Criterion for validity of many-body perturbation theory of the electron gas.
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电子气多体微扰理论有效性判据。
DOI：
10.1103/physrevlett.71.1220
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
Anderson Pw
中科院分区：
文献类型：
--
作者：
Anderson Pw
本文的目的是指出在传统的多体微扰理论的步骤，需要单独的，额外的理由和以上的收敛或微扰级数。有疑问的步骤是由化学势抵消或重整化能量衬衫，忽略任何可能的修改或波函数以及状态相关的能量衬衫
The purpose or this paper is to point out the steps in conventional many-body perturbation theory which require separate, additional justification over and above convergence or the perturbation series. The questionable step is the cancellation or the renormalized energy shirt by the chemical potential, neglecting any possible modification or the wave functions as well as state-dependent energy shirts