Trace anomaly and infrared cutoffs

被引：13

作者：

Morris, Tim R. ^{[1
,2
]}

Percacci, Roberto ^{[3
,4
]}

机构：

[1] Univ Southampton, STAG Res Ctr, Southampton SO17 1BJ, Hants, England

[2] Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England

[3] Scuola Int Super Studi Avanzati, Via Bonomea 265, I-34136 Trieste, Italy

[4] Ist Nazl Fis Nucl, Sez Trieste, I-34100 Trieste, Italy

来源：

PHYSICAL REVIEW D | 2019年 / 99卷 / 10期

关键词：

CONFORMAL ANOMALIES;

D O I：

10.1103/PhysRevD.99.105007

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The effective average action is a form of effective action which depends on a cutoff scale suppressing the contribution of low momentum modes in the functional integral. It reduces to the ordinary effective action when the cutoff scale goes to zero. We derive the modifications of the scale Ward identity due to this cutoff and show how the resulting identity then intimately relates the trace anomaly to the Wilsonian realization of the renormalization group.

引用

页数：12

共 48 条

[1] ENERGY-MOMENTUM-TENSOR TRACE ANOMALY IN SPIN-1/2 QUANTUM ELECTRODYNAMICS [J].