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Moduli evolution in the presence of flux compactifications.

Moduli evolution in the presence of flux compactifications.
Moduli evolution in the presence of flux compactifications.
We study the cosmological evolution of the volume moduli in a class of recently proposed inflationary universe models of Kachru et al. arising out of Type IIB string theory, where a number of the moduli fields have been stabilized through flux compactifications. Developing an approach introduced by some of us earlier, we show, in agreement with Brustein et al., how the presence of extra sources of matter act so as to provide additional friction, slowing the modulus field as it evolves down its potential, thereby vastly increasing the region of parameter space which leads to the eventual stabilization of these fields. Extending the case to include both the real and imaginary parts of the volume modulus, we show how the parameter space of initial conditions is modified and comment on the impact for these inflationary models arising out of flux type compactifications.
1550-7998
106004-[10pp.]
Barreiro, Tiago
9a2d4859-7b5b-4264-94d0-2d2cfa1e86db
de Carlos, Beatriz
f2040a2d-52ce-4166-add7-60135ce21835
Copeland, Ed
41440409-d03b-4dcf-a48a-bf7ec3f935bb
Nunes, Nelson J.
ddb63fbb-8534-4ecf-8045-f0d8d18fe664
Barreiro, Tiago
9a2d4859-7b5b-4264-94d0-2d2cfa1e86db
de Carlos, Beatriz
f2040a2d-52ce-4166-add7-60135ce21835
Copeland, Ed
41440409-d03b-4dcf-a48a-bf7ec3f935bb
Nunes, Nelson J.
ddb63fbb-8534-4ecf-8045-f0d8d18fe664

Barreiro, Tiago, de Carlos, Beatriz, Copeland, Ed and Nunes, Nelson J. (2005) Moduli evolution in the presence of flux compactifications. Physical Review D, 72, 106004-[10pp.]. (doi:10.1103/PhysRevD.72.106004).

Record type: Article

Abstract

We study the cosmological evolution of the volume moduli in a class of recently proposed inflationary universe models of Kachru et al. arising out of Type IIB string theory, where a number of the moduli fields have been stabilized through flux compactifications. Developing an approach introduced by some of us earlier, we show, in agreement with Brustein et al., how the presence of extra sources of matter act so as to provide additional friction, slowing the modulus field as it evolves down its potential, thereby vastly increasing the region of parameter space which leads to the eventual stabilization of these fields. Extending the case to include both the real and imaginary parts of the volume modulus, we show how the parameter space of initial conditions is modified and comment on the impact for these inflationary models arising out of flux type compactifications.

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Published date: 16 November 2005

Identifiers

Local EPrints ID: 64101
URI: http://eprints.soton.ac.uk/id/eprint/64101
ISSN: 1550-7998
PURE UUID: 7796f8d1-c6df-476f-a3fa-d15ca282a461

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Date deposited: 01 Dec 2008
Last modified: 13 Mar 2019 20:22

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