THE AVERAGE ACTION FOR SCALAR FIELDS NEAR PHASE-TRANSITIONS

被引：142

作者：

WETTERICH, C

机构：

[1] Institut für Theoretische Physik, Universität Heidelberg, Heidelberg, W6900

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1993年 / 57卷 / 03期

关键词：

D O I：

10.1007/BF01474340

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：

We compute the average action for scalar fields in two, three and four dimensions, including the effects of wave function renormalization. A study of the one loop evolution equations for the scale dependence of the average action gives a unified picture of the qualitatively different behaviour in various dimensions for discrete as well as abelian and nonabelian continuous symmetry. The different phases and the phase transitions can be infered from the evolution equation.

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页码：451 / 469

页数：19

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