Primordial density fluctuations in a dual supergravity cosmology

• Type: Article in International Scientific Journal
• Date: 1998

Authors

Bento, MC (Author) Other; Bertolami, O (Author) Other; Nunes, NJ (Author) Other

Journal

Title: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

Vol. 427

Pages: 261-266

ISSN: 0370-2693

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 8 Citations

Scopus - 7 Citations

Other information

Authenticus ID: P-001-7X4

DOI: 10.1016/s0370-2693(98)00218-4

Abstract (EN): We analyse the spectrum of energy density fluctuations of a dual supergravity model where the dilaton and the moduli are stabilized and sucessful inflation is achieved inside domain walls that separate different vacua of the theory. Constraints on the parameters of the superpotential are derived from the amplitude of the primordial energy density fluctuations as inferred from COBE and it is shown that the scale dependence of the tensor perturbations nearly vanishes.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6