General plane wave mode functions for scalar-driven cosmology

Details General plane wave mode functions for scalar-driven cosmology General plane wave mode functions for scalar-driven cosmology

2003-06-28

arxiv.org/abs/astro-ph/0306602v2

Class.Quant.Grav.21:93-102,2003

Astronomy and Astrophysics

Astrophysics

6 pages, revtex4, no figures, revised version corrects an embarrassing mistake (in the published version) for the parameter q_

Scientific paper

10.1088/0264-9381/21/1/007

We give a solution for plane wave scalar, vector and tensor mode functions in the presence of any homogeneous, isotropic and spatially flat cosmology which is driven by a single, minimally coupled scalar. The solution is obtained by rescaling the various mode functions so that they reduce, with a suitable scale factor and a suitable time variable, to those of a massless, minimally coupled scalar. We then express the general solution in terms of co-moving time and the original scale factor.

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