On the Tail Problem in Cosmology

Details On the Tail Problem in Cosmology On the Tail Problem in Cosmology

1992-09-23

arxiv.org/abs/astro-ph/9209004v1

Phys.Lett. A170 (1992) 413-420

Astronomy and Astrophysics

Astrophysics

12 pages

Scientific paper

10.1016/0375-9601(92)90744-7

The tail problem for the propagation of a scalar field is considered in a cosmological background, taking a Robertson-Walker spacetime as a specific example. The explicit radial dependence of the general solution of the Klein-Gordon equation with nonminimal coupling is derived, and the inapplicability of the standard calculation of the reflection and transmission coefficients to the study of scattering of waves by the cosmological curvature is discussed.

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