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Title: Constraints on the production of primordial magnetic seeds in pre-big bang cosmology

Abstract

We study the amplification of the electromagnetic fluctuations, and the production of 'seeds' for the cosmic magnetic fields, in a class of string cosmology models whose scalar and tensor perturbations reproduce current observations and satisfy known phenomenological constraints. We find that the condition of efficient seeds production can be satisfied and compatible with all constraints only in a restricted region of parameter space, but we show that such a region has significant intersections with the portions of parameter space where the produced background of relic gravitational waves is strong enough to be detectable by aLIGO/Virgo and/or by eLISA.

Authors:
 [1]
  1. Dipartimento di Fisica, Università di Bari, Via G. Amendola 173, 70126 Bari (Italy)
Publication Date:
OSTI Identifier:
22676167
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2017; Journal Issue: 06; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; AMPLIFICATION; COSMOLOGY; DISTURBANCES; ENZYME IMMUNOASSAY; FLUCTUATIONS; GRAVITATIONAL WAVES; INTERFEROMETRY; MAGNETIC FIELDS; PERTURBATION THEORY; SPACE

Citation Formats

Gasperini, M., E-mail: gasperini@ba.infn.it. Constraints on the production of primordial magnetic seeds in pre-big bang cosmology. United States: N. p., 2017. Web. doi:10.1088/1475-7516/2017/06/017.
Gasperini, M., E-mail: gasperini@ba.infn.it. Constraints on the production of primordial magnetic seeds in pre-big bang cosmology. United States. doi:10.1088/1475-7516/2017/06/017.
Gasperini, M., E-mail: gasperini@ba.infn.it. Thu . "Constraints on the production of primordial magnetic seeds in pre-big bang cosmology". United States. doi:10.1088/1475-7516/2017/06/017.
@article{osti_22676167,
title = {Constraints on the production of primordial magnetic seeds in pre-big bang cosmology},
author = {Gasperini, M., E-mail: gasperini@ba.infn.it},
abstractNote = {We study the amplification of the electromagnetic fluctuations, and the production of 'seeds' for the cosmic magnetic fields, in a class of string cosmology models whose scalar and tensor perturbations reproduce current observations and satisfy known phenomenological constraints. We find that the condition of efficient seeds production can be satisfied and compatible with all constraints only in a restricted region of parameter space, but we show that such a region has significant intersections with the portions of parameter space where the produced background of relic gravitational waves is strong enough to be detectable by aLIGO/Virgo and/or by eLISA.},
doi = {10.1088/1475-7516/2017/06/017},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 06,
volume = 2017,
place = {United States},
year = {Thu Jun 01 00:00:00 EDT 2017},
month = {Thu Jun 01 00:00:00 EDT 2017}
}
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