Gauge-invariant fluctuations of the metric in stochastic inflation - art. no. 107301

Authors
Bellini, M
Citation
M. Bellini, Gauge-invariant fluctuations of the metric in stochastic inflation - art. no. 107301, PHYS REV D, 6110(10), 2000, pp. 7301
Citations number
11
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
05562821 → ACNP
Volume
6110
Issue
10
Year of publication
2000
Database
ISI
SICI code
0556-2821(20000515)6110:10<7301:GFOTMI>2.0.ZU;2-8
Abstract
I derive the stochastic equation for the perturbations of the metric for a gauge-invariant energy-momentum tensor in stochastic inflation. A quantizat ion for the field that describes the gauge-invariant perturbations for the metric is developed. In a power-law expansion for the universe the amplitud e for these perturbations on a background metric could be very important in the infrared sector.