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Probing noncommutativity with inflationary gravitational waves
Cai YF(蔡一夫); Cai, YF; Piao, YS
2007
发表期刊PHYSICS LETTERS B
卷号657期号:1-3页码:1-9
通讯作者Cai, YF (reprint author), Chinese Acad Sci, Inst High Energy Phys, POB 918-4, Beijing 100049, Peoples R China.
摘要In this Letter we study the behaviour of gravitational wave background (GWB) generated during inflation in the noncommutative field approach. From this approach we derive one additional term, and then we find that the dispersion relation of the gravitational wave would be modified and the primordial gravitational wave would obtain an effective mass. Therefore it breaks local Lorentz symmetry. Moreover, this additional term suppresses the energy spectrum of the GWB greatly at low energy scale where the wave length is near the current horizon. Due to this, a sharp peak is formed in the energy spectrum at the low frequency band. This peak should be a key criterion in detecting the space-time noncommutativity and a critical test for Lorentz symmetry breaking in local field theory. (C) 2007 Elsevier B.V. All rights reserved.
文章类型Article
学科领域Physics
DOI10.1016/j.physletb.2007.09.068
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000251595600001
引用统计
被引频次:25[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/311005/225437
专题理论物理室
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GB/T 7714
Cai YF,Cai, YF,Piao, YS. Probing noncommutativity with inflationary gravitational waves[J]. PHYSICS LETTERS B,2007,657(1-3):1-9.
APA 蔡一夫,Cai, YF,&Piao, YS.(2007).Probing noncommutativity with inflationary gravitational waves.PHYSICS LETTERS B,657(1-3),1-9.
MLA 蔡一夫,et al."Probing noncommutativity with inflationary gravitational waves".PHYSICS LETTERS B 657.1-3(2007):1-9.
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