Power Spectra in Spacetime Noncommutative Inflation

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dc.creatorHuang, Qing-Guo
dc.creatorLi, Miao
dc.date2003-11-17
dc.date2005-03-01
dc.date.accessioned2026-07-07T10:27:07Z
dc.date.available2026-07-07T10:27:07Z
dc.descriptionString/M theory inspires an uncertainty relation between space and time which deviates from general relativity. It is possible to explore this deviation from cosmological observations, in particular from the CMB fluctuation spectrum. This paper extends some previous observations to more general inflation schemes, we find that the noncommutative spacetime effects always suppress the power spectrum, of both the scalar and tensor perturbations, and may provide a large enough running of the spectral index to fit the WMAP data in the inflation model.
dc.description19 pages, 6 figures, harvmac; 2 references added; only references added; Accepted for publication in Nucl. Phys. B
dc.identifierhttps://arxiv.org/abs/astro-ph/0311378
dc.identifierhttp://arxiv.org/abs/astro-ph/0311378
dc.identifierNucl.Phys.B713:219-234,2005
dc.identifierdoi:10.1016/j.nuclphysb.2005.02.002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/177062
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titlePower Spectra in Spacetime Noncommutative Inflation
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