SPIN-BOSON SYSTEMS - EQUIVALENCE BETWEEN THE DILUTE-BLIP AND THE BORN APPROXIMATIONS

被引：98

作者：

ASLANGUL, C

POTTIER, N

SAINTJAMES, D

机构：

[1] UNIV PARIS 06, F-75005 PARIS, FRANCE

[2] COLL FRANCE, PHYS STAT LAB, F-75231 PARIS 05, FRANCE

来源：

JOURNAL DE PHYSIQUE | 1986年 / 47卷 / 10期

关键词：

MATHEMATICAL TECHNIQUES - Approximation Theory - PHONONS;

D O I：

10.1051/jphys:0198600470100165700

中图分类号：

学科分类号：

摘要：

The equivalence between the dilute-blip approximation and the standard record-order Born approximation is demonstrated by considering the case of a particle in a symmetric double-well potential linearly coupled to a bash of phonons. It is shown that at the level of approximation considered only plain relaxation theory and usual analysis are required.

引用

页码：1657 / 1661

页数：5

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