DENSITY PERTURBATION IN EXTENDED INFLATION

Authors
MALLIK S CHAUDHURI DR
Citation
S. Mallik et Dr. Chaudhuri, DENSITY PERTURBATION IN EXTENDED INFLATION, Physical review. D. Particles and fields, 56(2), 1997, pp. 625-630
Citations number
26
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
56
Issue
2
Year of publication
1997
Pages
625 - 630
Database
ISI
SICI code
0556-2821(1997)56:2<625:DPIEI>2.0.ZU;2-4
Abstract
We examine the calculation of density perturbation at large scales in the inflationary scenario. The formula for its magnitude is reviewed f rom first principles and applied to the original model of extended inf lation. Our estimate is an order of magnitude bigger than the earlier ones due to the difference in the time at which the primordial fluctua tion is evaluated and to the inclusion of terms neglected earlier in t he standard formula for density perturbation.