152 citations · 932 across the 13 of their papers we have counts for
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hep-th2012★ 147 cited
Heavy fields, reduced speeds of sound and decoupling during inflation
Ana Achucarro, Vicente Atal, Sebastian Cespedes +3
We discuss and clarify the validity of effective single field theories of inflation obtained by integrating out heavy degrees of freedom in the regime where adiabatic perturbations…
hep-th2012★ 152 cited
On the importance of heavy fields during inflation
Sebastian Cespedes, Vicente Atal, Gonzalo A. Palma
We study the dynamics of two-field models of inflation characterized by a hierarchy of masses between curvature and isocurvature modes. When the hierarchy is large, a low energy ef…