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hep-ph2010★ 383 cited
Features of heavy physics in the CMB power spectrum
Ana Achúcarro, Jinn-Ouk Gong, Sjoerd Hardeman +2
The computation of the primordial power spectrum in multi-field inflation models requires us to correctly account for all relevant interactions between adiabatic and non-adiabatic…
hep-th2010★ 157 cited
Mass hierarchies and non-decoupling in multi-scalar field dynamics
Ana Achúcarro, Jinn-Ouk Gong, Sjoerd Hardeman +2
In this work we study the effects of field space curvature on scalar field perturbations around an arbitrary background field trajectory evolving in time. Non-trivial imprints of t…