Jinn-Ouk Gong
Published 2014-09-29Version 1
We compute the running of the scalar spectral index in general multi-field slow-roll inflation. By incorporating explicit momentum dependence at the moment of horizon crossing, we can find the running straightforwardly. At the same time, we can distinguish the contributions from the quasi de Sitter background and the super-horizon evolution of the field fluctuations.
Large tensor-to-scalar ratio and running of the scalar spectral index with Instep Inflation
Towards general patterns of features in multi-field inflation
Multi-field inflation and preheating in asymmetric $α$-attractors
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