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| Formato: | Artículo científico |
| Lenguaje: | en |
| Publicado: |
Sociedade Brasileira de Física
2008
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| Materias: | |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=46415795024 |
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- Parametric Resonance in Dissipative Field Dynamics Rudnei O. Ramos R. A. S. Vartuli Física, Astronomía y Matemáticas Particle production Parametric resonance Nonequlibrium dynamics The effects of bosonic trilinear interactions are investigated in the process of resonant particle production. We study a generic model of three fields with trilinear couplings. In this model a scalar field can excite a heavy bosonic field which then decays into a light bosonic field. We study the consequences of dissipation and stochastic noise terms in the field equations of motion that result from a calculation in nonequlibrium quantum field theory and determine the effects of these terms for the phenomenon of parametric resonance, which can occur e.g. during preheating after inflation. 2008 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46415795024 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3B Vol.38