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Non-Gaussianity from Broken Symmetries

Recently we studied inflation models in which the inflaton potential is characterized by an underlying approximate global symmetry. In the first work we pointed out that in such a model curvature perturbations are generated after the end of the slow-roll phase of inflation. In this work we develop f...

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Detalles Bibliográficos
Autores principales:	Kolb, Edward W., Riotto, Antonio, Vallinotto, Alberto
Lenguaje:	eng
Publicado:	2005
Materias:	Astrophysics and Astronomy
Acceso en línea:	https://dx.doi.org/10.1103/PhysRevD.73.023522 http://cds.cern.ch/record/905213

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