NEW PERTURBATIVE APPROACH FOR THE ANHARMONIC-OSCILLATOR

被引：3

作者：

HAAN, O ^{[1
]}

MUTTER, KH ^{[1
]}

机构：

[1] UNIV WUPPERTAL,DEPT PHYS,WUPPERTAL,FED REP GER

来源：

NUCLEAR PHYSICS B | 1979年 / 155卷 / 02期

关键词：

D O I：

10.1016/0550-3213(79)90281-5

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

A new perturbative approach is presented and applied to the anharmonic oscillator. Estimating the large-order behaviour by means of the Lipatov method, the new perturbation expansion turns out to be convergent for the partition function at non-zero temperature. Although the new perturbation expansion is not convergent for the ground-state energy, it nevertheless provides accurate approximations, even in situations which cannot be treated by standard perturbation techniques, like the strong coupling regime. © 1979.

引用

页码：461 / 479

页数：19

共 19 条

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