Sequestered Inflation

TL;DR

This paper develops supergravity models that separate inflationary dynamics from high-energy physics, ensuring decoupling of heavy fields and providing a framework for consistent inflationary scenarios.

Contribution

It introduces a two-step procedure to construct supergravity inflation models with sequestered phenomenology from Planck-scale physics, ensuring decoupling of heavy fields.

Findings

Supergravity models with Minkowski vacua and flat directions are constructed.

Conditions for decoupling heavy fields from inflation are identified.

A framework for sequestering inflation from high-energy physics is proposed.

Abstract

We construct supergravity models allowing to sequester the phenomenology of inflation from the Planckian energy scale physics. The procedure consists of two steps: At Step I we study supergravity models, which might be associated with string theory or M-theory, and have supersymmetric Minkowski vacua with flat directions. At Step II we uplift these flat directions to inflationary plateau potentials. We find certain conditions which ensure that the superheavy fields involved in the stabilization of the Minkowski vacua at Step I are completely decoupled from the inflationary phenomenology.