Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Quenching preheating by light fields

Quenching preheating by light fields In this paper we investigate the role of additional light fields not directly coupled to the background during preheating. We extend our previous study that proved that the production of particles associated with such fields can be abundant due to quantum corrections, even for the massless states. We also obtain the expression for the occupation number operator in terms of interacting fields, which includes the nonlinear effects important for nonperturbative particle production. We show that adding too many light degrees of freedom without direct interactions with the background might attenuate or even quench preheating as the result of backreaction effects and quantum corrections. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review D American Physical Society (APS)

Quenching preheating by light fields

Quenching preheating by light fields

Physical Review D , Volume 96 (2) – Jul 15, 2017

Abstract

In this paper we investigate the role of additional light fields not directly coupled to the background during preheating. We extend our previous study that proved that the production of particles associated with such fields can be abundant due to quantum corrections, even for the massless states. We also obtain the expression for the occupation number operator in terms of interacting fields, which includes the nonlinear effects important for nonperturbative particle production. We show that adding too many light degrees of freedom without direct interactions with the background might attenuate or even quench preheating as the result of backreaction effects and quantum corrections.

Loading next page...
1
 
/lp/aps_physical/quenching-preheating-by-light-fields-0z0S9eddkM

References

References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.

Publisher
American Physical Society (APS)
Copyright
Copyright © © 2017 American Physical Society
ISSN
1550-7998
eISSN
1550-2368
DOI
10.1103/PhysRevD.96.023510
Publisher site
See Article on Publisher Site

Abstract

In this paper we investigate the role of additional light fields not directly coupled to the background during preheating. We extend our previous study that proved that the production of particles associated with such fields can be abundant due to quantum corrections, even for the massless states. We also obtain the expression for the occupation number operator in terms of interacting fields, which includes the nonlinear effects important for nonperturbative particle production. We show that adding too many light degrees of freedom without direct interactions with the background might attenuate or even quench preheating as the result of backreaction effects and quantum corrections.

Journal

Physical Review DAmerican Physical Society (APS)

Published: Jul 15, 2017

There are no references for this article.