Primordial Gaussian fluctuations from cosmic defects

• Tipo: Artigo em Revista Científica Internacional
• Data: 2001

Autores

Avelino, PP (Autor) FCUP; Martins, CJAP (Autor) Outra

Revista

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

Vol. 516

Páginas: 191-196

ISSN: 0370-2693

Editora: Elsevier

Indexação

ISI Web of Knowledge - 3 Citações

Scopus - 3 Citações

Outras Informações

ID Authenticus: P-000-TA7

DOI: 10.1016/s0370-2693(01)00926-1

Abstract (EN): We extend our recent work on "two-metric" theories of gravity by showing how in such models cosmic defects can produce a spectrum of primordial Gaussian density perturbations. This will happen when the speed characterising the decay products of the defect network is much larger than the speed characterising gravity and all standard model particles. This model will exactly mimic all the standard predictions of inflationary models, and the only way of distinguishing the two will be via the detection of the decay products of the network. (C) 2001 Published by Elsevier Science B.V.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6