Quantum corrections to unimodular gravity

被引：78
|
作者：
Alvarez, Enrique [1 ,2 ]
Gonzalez-Martin, Sergop [1 ,2 ]
Herrero-Valea, Mario [1 ,2 ]
Martin, Carmelo P. [3 ]
机构：
[1] CSIC, Inst Fis Teor UAM, Madrid 28049, Spain
[2] Univ Autonoma Madrid, Dept Fis Teor, Madrid 20849, Spain
[3] Univ Complutense Madrid, Dept Fis Teor 1, Fac Ciencias Fis, E-28040 Madrid, Spain
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2015年 / 08期
关键词：
BRST Quantization; Models of Quantum Gravity; CURVED SPACE-TIME; GAUGE-THEORIES; RENORMALIZATION;
D O I：
10.1007/JHEP08(2015)078
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：
The problem of the comological constant appears in a new light in Unimodular Gravity. In particular, the zero momentum piece of the potential (that is, the constant piece independent of the matter fields) does not automatically produce a cosmological constant proportional to it. The aim of this paper is to give some details on a calculation showing that quantum corrections do not renormalize the classical value of this observable.
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页数：37
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