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Cosmological parameters in the noncommutative inflation

Yun Soo Myung
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Abstract

We investigate how the uncertainty of noncommutative spacetime could explain the WMAP data. For this purpose, the spectrum is divided into the IR and UV region. We introduce a noncommutative parameter of $γ_0$ in the IR region and a noncommutative parameter of $μ_0$ in the UV region. We calculate cosmological parameters using the slow-roll expansion in the UV region and a perturbation method in the IR region. The power-law inflation is chosen to obtain explicit forms for the power spectrum, spectral index, and running spectral index. Further, these are used to fit the data.

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Yun Soo Myung. 2004-09-10. Cosmological parameters in the noncommutative inflation. https://doi.org/10.1016/j.physletb.2004.09.017

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