TRACE ANOMALY IN A SCALAR THEORY WITH AN AUXILIARY EXTERNAL-FIELD

被引：6

作者：

ALVES, MS ^{[1
]}

FARINA, C ^{[1
]}

机构：

[1] UNIV ZARAGOZA,DEPT FIS TEOR,E-50009 ZARAGOZA,SPAIN

来源：

CLASSICAL AND QUANTUM GRAVITY | 1992年 / 9卷 / 08期

关键词：

D O I：

10.1088/0264-9381/9/8/006

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discuss some aspects of the generalization of Fujikawa's method for computing the trace anomaly when an external field is present. This is done explicitly for the case of a scalar theory in four dimensions. We also use the idea of a compensating field in order to construct a general conformal invariant action for a scalar theory in two dimensions. This is done after a suitable choice of the integration variable in the functional measure. The corresponding trace anomaly is computed and the result obtained is more general than the usual one.

引用

页码：1841 / 1850

页数：10

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