Cosmological singleton gravity theory and dS/LCFT correspondence

TL;DR

This paper explores how singleton gravity theory influences cosmological perturbations during de Sitter inflation, demonstrating the applicability of dS/LCFT correspondence and analyzing spectral indices with logarithmic corrections.

Contribution

It introduces the use of singleton gravity theory in cosmology and shows the dS/LCFT correspondence's effectiveness in calculating power spectra.

Findings

Singleton power spectra align with dS/LCFT predictions

Spectral indices for light singleton include logarithmic corrections

The theory provides new insights into inflationary perturbations

Abstract

We study the evolution of cosmological perturbations generated during de Sitter inflation in the singleton gravity theory. This theory is composed of a dipole ghost pair in addition to tensor. We obtain the singleton power spectra which show that the de Sitter/logarithmic conformal field theory (dS/LCFT) correspondence works for computing the power spectra in the superhorizon limit. Also we compute the spectral indices for light singleton which contains a logarithmic correction.