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题名: Superluminal noncommutative photons
作者: 蔡荣根
刊名: PHYSICS LETTERS B
出版日期: 2001
卷号: 517, 期号:40972, 页码:457-461
关键词: BLACK-HOLE SPACETIMES ;  LIGHT PHOTONS ;  GRAVITATIONAL-FIELD ;  FASTER ;  PROPAGATION ;  VACUUM ;  CAUSALITY ;  PLATES
学科分类: Physics
通讯作者: Cai, RG , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
部门归属: Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Osaka Univ, Dept Phys, Toyonaka, Osaka 5600043, Japan
英文摘要: 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.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000171479800029
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13652
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Cai, RG. Superluminal noncommutative photons[J]. PHYSICS LETTERS B,2001,517(40972):457-461.
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