Generalized space-time noncommutative inflation

被引：4
|
作者：
Xue, Wei [1 ]
Chen, Bin
Wang, Yi
机构：
[1] Peking Univ, Dept Phys, Beijing 100871, Peoples R China
[2] Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
[3] Interdisciplinary Ctr Theoret Study China, Hefei 230027, Peoples R China
来源：
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2007年 / 09期
关键词：
string theory and cosmology; inflation; physics of the early universe;
D O I：
10.1088/1475-7516/2007/09/011
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the noncommutative inflation with a time-dependent noncommutativity between space and time. From the numerical analysis of power law inflation, there are clues that the CMB spectrum indicates a nonconstant noncommutative inflation. Then we extend our treatment to the inflation models with more general noncommutativity and find that the scalar perturbation power spectrum depends sensitively on the time varying of the spacetime noncommutativity. This stringy effect may be probed in the future cosmological observations.
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页数：11
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