Short Distance Physics and Initial State Effects on the CMB Power Spectrum
| dc.creator | Zarei, Moslem | |
| dc.date | 2008-09-25 | |
| dc.date | 2008-11-23 | |
| dc.date.accessioned | 2026-07-07T12:15:44Z | |
| dc.date.available | 2026-07-07T12:15:44Z | |
| dc.description | We investigate a modification in the action of inflaton due to noncommutativity leads to a nonstandard initial vacuum and oscillatory corrections in the initial power spectrum. We show that the presence of these oscillations causes a drop in the WMAP $χ^{2}$ about $Δχ^{2}\sim 8.5$. As a bonus, from the parameter estimation done in this work, we show that the noncommutative parameters can be precisely bound to $10^{16}$ GeV or $10^{4}$ GeV depending on the inflation scale. | |
| dc.description | 29 pages, 5 figures, v2 | |
| dc.identifier | https://arxiv.org/abs/0809.4312 | |
| dc.identifier | http://arxiv.org/abs/0809.4312 | |
| dc.identifier | Phys.Rev.D78:123502,2008 | |
| dc.identifier | doi:10.1103/PhysRevD.78.123502 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/211577 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Short Distance Physics and Initial State Effects on the CMB Power Spectrum | |
| dc.type | text |