Planck, LHC, and $\alpha$-attractors

TL;DR

This paper introduces $oldsymbol{ extalpha}$-attractor cosmological models compatible with Planck data, extending their framework to encompass dark energy and supersymmetry breaking within supergravity.

Contribution

It develops generalized $oldsymbol{ extalpha}$-attractor models that unify inflation, dark energy, and supersymmetry breaking in a supergravity context.

Findings

Models fit Planck data well

Extended models describe dark energy and supersymmetry breaking

Framework is based on supergravity with logarithmic Kahler potentials

Abstract

We describe a simple class of cosmological models called $\alpha$ attractors, which provide an excellent fit to the latest Planck data. These theories are most naturally formulated in the context of supergravity with logarithmic Kahler potentials. We develop generalized versions of these models which can describe not only inflation but also dark energy and supersymmetry breaking.