1998/01/20 by M. C. Bento, M.C. Bento, O. Bertolami +2
Physics and Astronomy · #Amplitude #Black Holes and Theoretical Physics #Cosmology #Cosmology and Gravitation Theories #Dilaton #Inflation (cosmology) #Moduli #Particle physics theoretical and experimental studies #Primordial fluctuations #Supergravity #Superpotential #Tensor (intrinsic definition) #gr-qc
paper · pdf · doi:10.1016/s0370-2693(98)00218-4
published as Phys.Lett. B427 (1998) 261-266 · 13 pages, Latex, 3 figures (uses epsf.sty)
arxiv created 1998/01/20 · openalex publication_date 1998/05/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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.