ANALYTIC SOLUTIONS FOR COSMOLOGICAL PERTURBATIONS IN MULTIDIMENSIONALSPACE-TIME

Authors
SCHWARZ DJ
Citation
Dj. Schwarz, ANALYTIC SOLUTIONS FOR COSMOLOGICAL PERTURBATIONS IN MULTIDIMENSIONALSPACE-TIME, International journal of modern physics D, 3(1), 1994, pp. 265-268
Citations number
24
Categorie Soggetti
Astronomy & Astrophysics
Journal title
International journal of modern physics D → ACNP
ISSN journal
02182718
Volume
3
Issue
1
Year of publication
1994
Pages
265 - 268
Database
ISI
SICI code
0218-2718(1994)3:1<265:ASFCPI>2.0.ZU;2-6
Abstract
We obtain analytic solutions for the density contrast and the anisotro pic pressure in a multi-dimensional FRW cosmology with collisionless, massless matter. These are compared with perturbations of a perfect fl uid universe. To describe the metric perturbations we use manifest gau ge invariant metric potentials. The matter perturbations are calculate d by means of (automatically gauge invariant) finite temperature field theory, instead of kinetic theory.