Hubble multi-scalar inflation

Abstract

Multiple field models of inflation exhibit new features than single field models. In this work, we study the hierarchy of parameters based on Hubble expansion rate in curved field space and derive the system of flow equations that describe their evolution. Then we focus on obtaining derivatives of number of $e$-folds with respect to scalar fields during inflation and at hypersurface of the end of inflation.

17 pages, No fig., JCAP style

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Cited by in corpus (7)

• Canonical Scalar Field Inflation with a Woods-Saxon Potential
• Building analytical three-field cosmological models
• Cosmological scenarios from multiquintessence
• Inflation with antisymmetric tensor field: new candidates
• Inflation using a triplet of Antisymmetric tensor fields
• Scalar and vector modes in inflation with antisymmetric tensor field
• Anisotropic Spacetimes in Chiral Scalar Field Cosmology