Plane waves in a general Robertson-Walker background

Details Plane waves in a general Robertson-Walker background Plane waves in a general Robertson-Walker background

2002-06-02

arxiv.org/abs/astro-ph/0206010v3

Class.Quant.Grav. 20 (2003) 5205-5223

Astronomy and Astrophysics

Astrophysics

11 pages, revtex4, no figures, version 3 is vastly expanded (from 57 eqns to 166) to give an explicit expression for the trans

Scientific paper

10.1088/0264-9381/20/23/015

We present an exact solution for the plane wave mode functions of a massless, minimally coupled scalar propagating in an arbitrary homogeneous, isotropic and spatially flat geometry. Our solution encompasses all previous solvable special cases such as de Sitter and power law expansion. Moreover, it can generate the mode functions for gravitons. We discuss some of the many applications that are now possible.

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