Primordial perturbation with a modified dispersion relation

Details Primordial perturbation with a modified dispersion relation Primordial perturbation with a modified dispersion relation

2009-06-18

arxiv.org/abs/0906.3341v1

Phys.Rev.D80:043520,2009

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

6 pages, 2 figures, 1 table

Scientific paper

10.1103/PhysRevD.80.043520

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.

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