Log-anharmonic oscillator and its large-N solution

被引：5
|
作者：
Znojil, Miloslav [1 ]
Semoradova, Iveta [1 ]
机构：
[1] CAS, Nucl Phys Inst, Hlavni 130, Rez 25068, Czech Republic
来源：
MODERN PHYSICS LETTERS A | 2018年 / 33卷 / 38期
关键词：
Confining interactions; soft central repulsion; large-N expansion method; logarithmic anharmonicity; PERTURBATION-THEORY; 1/N EXPANSIONS; LARGE ORDERS; MODEL;
D O I：
10.1142/S0217732318502231
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Anharmonic oscillator is considered using an unusual, logarithmic form of the anharmonicity. The model is shown connected with the more conventional power-law anharmonicity similar to vertical bar x vertical bar(alpha) in the limit alpha -> 0. An efficient and user-friendly method of the solution of the model is found in the large-N expansion technique.
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页数：11
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