Double scaling limits, Airy functions and multicritical behaviour in O(N) vector sigma models

被引：0
|
作者：
Maeder, J
Ruhl, W
机构：
[1] Department of Physics, University of Kaiserslautern, 67653 Kaiserslautern
来源：
NUCLEAR PHYSICS B | 1996年
关键词：
D O I：
10.1016/0920-5632(96)00338-6
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：
O(N) vector sigma models possessing catastrophes in their action are studied. Coupling the limit N --> infinity with an appropriate scaling behaviour of the coupling constants, the partition function develops a singular factor. This is a generalised Airy function in the case of spacetime dimension zero and the partition function of a scalar field theory for positive spacetime dimension. Susceptibility matrices and beta functions are calculated.
引用
收藏
页码：219 / 225
页数：7
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