LINEAR DIVERGENCE IN THE 2-DIMENSIONAL ISING SPIN SPIN CORRELATOR AND GAUGE-INVARIANCE

被引：3
|
作者：
NAON, CM
机构：
[1] Departamento de Fisica, Universidad Nacional de La Plata
来源：
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 1990年 / 23卷 / 06期
关键词：
D O I：
10.1088/0305-4470/23/6/007
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The author considers the linear divergence which appears in field-theoretical computations of the 2D Ising spin-spin correlation function. By expressing the correlator in terms of fermionic determinant, the author shows that this divergence is connected with a certain gauge transformation of the fermion model. The author proves that if gauge invariance is preserved then the divergent term is not present in the final result.
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页码：L273 / L277
页数：5
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