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Superluminal noncommutative photons
Cai, RG; Cai, RG , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
2001
发表期刊PHYSICS LETTERS B
ISSN0370-2693
卷号517期号:40972页码:457-461
摘要With the help of the Seiberg-Witten map, one can obtain an effective action of a deformed QED from a noncommutative QED. Starting from the deformed QED, we investigate the propagation of photons in the back-ground of electromagnetic field, up to the leading order of the noncommutativity parameter. In our setting (both the electric and magnetic fields are parallel to the coordinate axis x(1) and the nonvanishing component of the noncommutativity parameter is theta (23)), we find that the electric field has no effect on the propagation of photons, but the velocity of photons can be larger than the speed of light (c = 1) when the propagating direction of photons is perpendicular to the direction of background magnetic field, while the light-cone condition does not change when the propagating direction is parallel to the background magnetic field. The causality associated with the superluminal photons is discussed briefly. (C) 2001 Elsevier Science B.V. All rights reserved.
部门归属Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Osaka Univ, Dept Phys, Toyonaka, Osaka 5600043, Japan
关键词Black-hole Spacetimes Light Photons Gravitational-field Faster Propagation Vacuum Causality Plates
学科领域Physics
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收录类别SCI
WOS记录号WOS:000171479800029
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13652
专题理论物理所1978-2010年知识产出
通讯作者Cai, RG , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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Cai, RG,Cai, RG , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.. Superluminal noncommutative photons[J]. PHYSICS LETTERS B,2001,517(40972):457-461.
APA Cai, RG,&Cai, RG , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2001).Superluminal noncommutative photons.PHYSICS LETTERS B,517(40972),457-461.
MLA Cai, RG,et al."Superluminal noncommutative photons".PHYSICS LETTERS B 517.40972(2001):457-461.
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