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The Lame equation in parametric resonance after inflation



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Finkel Morgenstern, Federico y González López, Artemio y López Maroto, Antonio y Rodríguez González, Miguel Ángel (2000) The Lame equation in parametric resonance after inflation. Physical Review D, 62 (10). ISSN 0556-2821

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URL Oficial: http://dx.doi.org/10.1103/PhysRevD.62.103515

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We show that the most general inflaton potential in Minkowski spacetime for which the differential equation for the Fourier modes of the matter fields reduces to Lame's equation is of the form V(phi)=lambda phi^4/4+Kphi^2/2+mu/(2 phi^2)+V_0. As an application, we study the preheating phase after inflation for the above potential with K=0 and arbitrary lambda,mu >0. For certain values of the coupling constant between the inflaton and the matter fields, we calculate the instability intervals and the characteristic exponents in closed form.

Tipo de documento:Artículo
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© 2000 The American Physical Society. A.L.M. wishes to thank J. García-Bellido for useful discussions. This work was partially supported by grants DGES PB98-0821 and DGICYT AEN97-1693.

Palabras clave:Dynamical supersymmetry breaking
Materias:Ciencias > Física
Código ID:27325
Depositado:13 Nov 2014 09:08
Última Modificación:20 Nov 2014 09:42

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