Dynamics of Interacting Scalar Fields in Expanding Space-Time

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dc.creatorBerera, Arjun
dc.creatorRamos, Rudnei O.
dc.date2004-06-30
dc.date2005-01-15
dc.date.accessioned2026-07-07T11:09:31Z
dc.date.available2026-07-07T11:09:31Z
dc.descriptionThe effective equation of motion is derived for a scalar field interacting with other fields in a Friedman-Robertson-Walker background space-time. The dissipative behavior reflected in this effective evolution equation is studied both in simplified approximations as well as numerically. The relevance of our results to inflation are considered both in terms of the evolution of the inflaton field as well as its fluctuation spectrum. A brief examination also is made of supersymmetric models that yield dissipative effects during inflation.
dc.description36 pages, 12 figures. Version published in the Physical Review D
dc.identifierhttps://arxiv.org/abs/hep-ph/0406339
dc.identifierhttp://arxiv.org/abs/hep-ph/0406339
dc.identifierPhys.Rev.D71:023513,2005
dc.identifierdoi:10.1103/PhysRevD.71.023513
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/190494
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleDynamics of Interacting Scalar Fields in Expanding Space-Time
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