Primordial Gaussian fluctuations from cosmic defects

• Type: Article in International Scientific Journal
• Date: 2001

Authors

Avelino, PP (Author) FCUP; Martins, CJAP (Author) Other

Journal

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

Vol. 516

Pages: 191-196

ISSN: 0370-2693

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 3 Citations

Scopus - 3 Citations

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6