CPT violating electrodynamics and Chern-Simons modified gravity

	CPT violating electrodynamics and Chern-Simons modified gravity
	Li, MZ; Cai YF(蔡一夫); Cai, YF; Wang, XL; Zhang, XM; Zhang XM(张新民)
刊名	PHYSICS LETTERS B
	2009
卷号	680 期号:2 页码:#REF!
通讯作者	Li, MZ (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China.
英文摘要	The electrodynamics with a Chern-Simons term p(mu)A(nu)(F) over tilde (mu nu) violates Lorentz and CPT symmetries with a non-vanishing p(mu). For a fixed vector p(mu), in this Letter we point out that the energy-momentum tensor of this theory coupled to the gravity minimally is symmetric but not divergence free, which consequently makes the gravitational field equation inconsistent. To preserve the consistency, we introduce a Chern-Simons term in the gravity sector with the coefficient determined by the Lorentz and CPT violating term in the electromagnetic field. Further we study the phenomenologies of the model oil the cosmic microwave background radiation and the relic gravitational waves. (C) 2009 Elsevier B.V. All rights reserved.
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
收录类别	SCI
WOS记录号	WOS:000270608400002
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/226277]
专题	高能物理研究所_理论物理室
推荐引用方式 GB/T 7714	Li, MZ,Cai YF,Cai, YF,et al. CPT violating electrodynamics and Chern-Simons modified gravity[J]. PHYSICS LETTERS B,2009,680(2):#REF!.
APA	Li, MZ,蔡一夫,Cai, YF,Wang, XL,Zhang, XM,&张新民.(2009).CPT violating electrodynamics and Chern-Simons modified gravity.PHYSICS LETTERS B,680(2),#REF!.
MLA	Li, MZ,et al."CPT violating electrodynamics and Chern-Simons modified gravity".PHYSICS LETTERS B 680.2(2009):#REF!.