Peccei-Quinn Mechanism in Gravity and the Nature of the Barbero-Immirzi Parameter

被引：59
作者：
Mercuri, Simone [1 ]
机构：
[1] Penn State Univ, Dept Phys, Inst Gravitat & Cosmos, Whitmore Lab, University Pk, PA 16802 USA
来源：
PHYSICAL REVIEW LETTERS | 2009年 / 103卷 / 08期
关键词：
CP CONSERVATION; QUANTUM;
D O I：
10.1103/PhysRevLett.103.081302
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A general argument provides the motivation to consider the Barbero-Immirzi parameter as a field. The specific form of the geometrical effective action allows one to relate the value of the Barbero-Immirzi parameter to other quantum ambiguities through the analog of the Peccei-Quinn mechanism.
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页数：4
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