Renormalization-group study of the one-dimensional polaron problem

被引：7

作者：

Keil, M ^{[1
]}

Schoeller, H

机构：

[1] Univ Gottingen, Inst Theoret Phys, D-37073 Gottingen, Germany

[2] Forschungszentrum Karlsruhe, Inst Nanotechnol, D-76021 Karlsruhe, Germany

[3] Univ Karlsruhe, Inst Theoret Festkorperphys, D-76128 Karlsruhe, Germany

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.62.2990

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate the one-dimensional polaron problem and calculate the ground-state energy and the effective mass. We use a real-time renormalization-group method and compare our results with first- and second-order perturbation theory, with Feynman's variational principle, and with the method of Lee, Low, and Pines.

引用

页码：2990 / 2993

页数：4

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