Generalized Space-time Noncommutative Inflation

Details Generalized Space-time Noncommutative Inflation Generalized Space-time Noncommutative Inflation

2007-06-13

arxiv.org/abs/0706.1843v2

JCAP0709:011,2007

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, 2 figures

Scientific paper

10.1088/1475-7516/2007/09/011

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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