OPTIMIZED PERTURBATION-METHODS FOR THE FREE-ENERGY OF THE ANHARMONIC-OSCILLATOR

被引：6

作者：

VLACHOS, K ^{[1
]}

OKOPINSKA, A ^{[1
]}

机构：

[1] WARSAW UNIV,INST PHYS,BIALYSTOK BRANCH,PL-15-424 BIALYSTOK,POLAND

来源：

PHYSICS LETTERS A | 1994年 / 186卷 / 5-6期

关键词：

D O I：

10.1016/0375-9601(94)90697-1

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Two possible applications of the optimized expansion for the free energy of the quantum-mechanical anharmonic oscillator are discussed. The first method is for the finite temperature effective potential; the second for the classical effective potential. The results of both methods show a quick convergence and agree well with the exact free energy in the whole range of temperature.

引用

页码：375 / 381

页数：7

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