N-flation in Supergravity

Abstract

We have constructed a large field N-flation model in the supergravity framework. In this simple set-up, N fields collectively drive inflation where each field traverses sub-Planckian field values. This has been realised with a generalisation of the single field chaotic inflation in Supergravity. Interestingly, despite of the presence of the field interactions, the dynamics can be described in terms of an effective single field. The observable predictions of our model i.e. tensor to scalar ratio r and scalar spectral index n_s are akin to the chaotic inflation.

Minor corrections added, Published Version

References in corpus (18)

• BICEP2 I: Detection Of B-mode Polarization at Degree Angular Scales
• Monodromy in the CMB: Gravity Waves and String Inflation
• A Natural Framework for Chaotic Inflation
• New models of chaotic inflation in supergravity
• An Ignoble Approach to Large Field Inflation
• General inflaton potentials in supergravity
• The Powers of Monodromy
• UV-Protected Inflation
• Axion Inflation in Type II String Theory
• Aligned Natural Inflation: Monodromies of two Axions
• Multi-Natural Inflation in Supergravity and BICEP2
• D7-Brane Moduli Space in Axion Monodromy and Fluxbrane Inflation
• Axion Inflation and Gravity Waves in String Theory
• Solving the $\eta$-Problem in Hybrid Inflation with Heisenberg Symmetry and Stabilized Modulus
• Chaotic Inflation in Supergravity with Heisenberg Symmetry
• Towards Natural Inflation in String Theory
• Natural Inflation with Natural Trans-Planckian Axion Decay Constant from Anomalous $U(1{)}_X$
• Testing Two-Field Inflation

Cited by in corpus (3)

• PBH dark matter from axion inflation
• Perspective on completing natural inflation
• Non-canonical Conformal Attractors for Single Field Inflation