MATCHING CONDITIONS FOR COSMOLOGICAL PERTURBATIONS

Authors
DERUELLE N MUKHANOV VF
Citation
N. Deruelle et Vf. Mukhanov, MATCHING CONDITIONS FOR COSMOLOGICAL PERTURBATIONS, Physical review. D. Particles and fields, 52(10), 1995, pp. 5549-5555
Citations number
29
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
52
Issue
10
Year of publication
1995
Pages
5549 - 5555
Database
ISI
SICI code
0556-2821(1995)52:10<5549:MCFCP>2.0.ZU;2-K
Abstract
We derive the matching conditions for cosmological perturbations in a Friedmann universe where the equation of state undergoes a sharp jump, for instance, as a result of a phase transition. The physics of the t ransition which is needed to follow the fate of the perturbations is c larified. We dissipate misleading statements made recently in the lite rature concerning the predictions of the primordial fluctuations from inflation and confirm standard results. Applications to string cosmolo gy are considered.