Inhomogeneous preheating in multi-field models of cosmological perturbation

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Matsuda, Tomohiro
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We consider inhomogeneous preheating in multi-field models of cosmological perturbation. After preheating, two fields are trapped at an enhanced symmetric point. One field is an oscillating field and the other is a light field that plays an important role in generating perturbation. In this presentation, we consider two types of potential for the light field.
Comment: Submitted for the SUSY07 proceedings
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High Energy Physics - Phenomenology, Astrophysics, High Energy Physics - Theory
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