Second-order correction to Feynnian's path-integral calculation of the polaron self-eneroy

被引：35

作者：

Marshall, John T. ^{[1
]}

Mills, Laney R. ^{[1
]}

机构：

[1] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA

来源：

PHYSICAL REVIEW B-SOLID STATE | 1970年 / 2卷 / 08期

关键词：

D O I：

10.1103/PhysRevB.2.3143

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The second-order term of a series expansion for the exact Feynman path-integral expression for the polaron self-energy is calculated. For all values of the polaron coupling constant, the result yields a correction of less than 2% to Feymnan's variational approximation of the polaron self-energy.

引用

页码：3143 / 3146

页数：4