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.
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页码：375 / 381
页数：7
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