New variational perturbation theory based on q-deformed oscillator

被引：1
作者：
Kim, Hyeong-Chan [1 ]
Yee, Jae Hyung
Kim, Sang Pyo
机构：
[1] Yonsei Univ, Dept Phys, Seoul 120749, South Korea
[2] Kunsan Natl Univ, Dept Phys, Kunsan 573701, South Korea
来源：
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2006年 / 45卷 / 05期
基金：
新加坡国家研究基金会;
关键词：
q-deformation; anharmonic oscillator; nonperturbative approximation;
D O I：
10.1007/s10773-006-9094-3
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A new variational perturbation theory is developed based on the q-deformed oscillator. It is shown that the new variational perturbation method provides 200 and 10 times better accuracy for the ground state energy of anharmonic oscillator than the Gaussian and the post Gaussian approximation, respectively, for weak coupling.
引用
收藏
页码：1017 / 1026
页数：10
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