Primordial adiabatic fluctuations from cosmic defects

• Type: Article in International Scientific Journal
• Date: 2000

Authors

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

Journal

Title: Physical Review Letters

Vol. 85

Pages: 1370-1373

ISSN: 0031-9007

Publisher: American Physical Society

Indexing

ISI Web of Knowledge - 19 Citations

Scopus - 20 Citations

Other information

Authenticus ID: P-000-Z8H

DOI: 10.1103/physrevlett.85.1370

Abstract (EN): In the context of "two-metric" theories of gravity there is the possibility that cosmic defects will produce a spectrum of primordial adiabatic density perturbations, when the speed characterizing the defect-producing scalar field is much larger than the speed characterizing gravity and standard model particles. This model will exactly mimic the standard predictions of inflationary models, with the exception of a small non-Gaussian signal which could be detected by future experiments.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4