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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)
2009
发表期刊PHYSICS LETTERS B
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.
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.
文章类型Article
学科领域Physics
DOI10.1016/j.physletb.2009.08.053
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000270608400002
引用统计
被引频次:18[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/226277
专题理论物理室
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!.
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