Primordial perturbation with a modified dispersion relation

Autor:	Cai, Yi-Fu, Zhang, Xinmin
Rok vydání:	2009
Předmět:	Astrophysics - Cosmology and Extragalactic Astrophysics High Energy Physics - Theory
Zdroj:	Phys.Rev.D80:043520,2009
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevD.80.043520
Popis:	In this paper we study the generation of primordial perturbation with a modified dispersion relation in various cosmological evolutions. We stress that the formation of the power spectrum is strongly dependent on the background. Working in a bounce model with a matter-like contracting phase, we obtain a red tilt spectrum due to the modified dispersion relation. Comment: 6 pages, 2 figures, 1 table
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0906.3341 Zobrazit plný text záznamu View this record from Arxiv