Reheating in the presence of noise

dc.creatorZanchin, V
dc.creatorMaia, A
dc.creatorCraig, W
dc.creatorBrandenberger, R
dc.date1998
dc.dateAPR 15
dc.date2014-12-02T16:30:06Z
dc.date2015-11-26T16:43:44Z
dc.date2014-12-02T16:30:06Z
dc.date2015-11-26T16:43:44Z
dc.date.accessioned2018-03-28T23:28:50Z
dc.date.available2018-03-28T23:28:50Z
dc.identifierPhysical Review D. American Physical Soc, v. 57, n. 8, n. 4651, n. 4662, 1998.
dc.identifier0556-2821
dc.identifierWOS:000073208600014
dc.identifier10.1103/PhysRevD.57.4651
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/80072
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/80072
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/80072
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1273688
dc.descriptionExplosive particle production due to parametric resonance is a crucial feature of reheating in inflationary cosmology. Coherent oscillations of the inflaton field act as a periodically varying mass in the evolution equation for matter fields which couple to the inflaton. This in turn results in the parametric resonance instability. Thermal and quantum noise will lead to a nonperiodic perturbation in the mass. We study the resulting equation for the evolution of matter fields and demonstrate that noise (at least if it is temporally uncorrelated) will increase the rate of particle production. We also estimate the limits on the magnitude of the noise for which the resonant behavior is qualitatively unchanged.
dc.description57
dc.description8
dc.description4651
dc.description4662
dc.languageen
dc.publisherAmerican Physical Soc
dc.publisherCollege Pk
dc.publisherEUA
dc.relationPhysical Review D
dc.relationPhys. Rev. D
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectParticle-production
dc.subjectUniverse
dc.subjectInflation
dc.subjectFluctuations
dc.titleReheating in the presence of noise
dc.typeArtículos de revistas


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