Astrophysical Tests of Lorentz and CPT Violation with Photons
Astrophysical Tests of Lorentz and CPT Violation with Photons
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DOI：
10.1086/595815
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发表时间：
2008-09
期刊：
影响因子：
--
通讯作者：
A. Kostelecký;M. Mewes
中科院分区：
文献类型：
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作者：
A. Kostelecký;M. Mewes
给出了电磁波洛伦兹不变性检验的一般框架，允许任意质量维数的算子。洛伦兹破坏的特征包括真空双折射、真空色散和各向异性。敏感的搜索违规使用的源，如活跃的星系，伽玛射线暴，宇宙微波背景进行了讨论。方向相关的色散约束的运营商的6和8维使用伽玛射线暴和耀变体Markarian 501。使用5年的数据，从威尔金森微波各向异性探测器上的运营商的3维的严格限制。没有证据表明各向同性的洛伦兹破坏，而在1 σ的各向异性破坏的一些支持。
A general framework for tests of Lorentz invariance with electromagnetic waves is presented, allowing for operators of arbitrary mass dimension. Signatures of Lorentz violations include vacuum birefringence, vacuum dispersion, and anisotropies. Sensitive searches for violations using sources such as active galaxies, gamma-ray bursts, and the cosmic microwave background are discussed. Direction-dependent dispersion constraints are obtained on operators of dimension 6 and 8 using gamma-ray bursts and the blazar Markarian 501. Stringent constraints on operators of dimension 3 are found using 5 year data from the Wilkinson Microwave Anisotropy Probe. No evidence appears for isotropic Lorentz violation, while some support at 1 σ is found for anisotropic violation.