Wilson Lines and Holographic Entanglement Entropy in Galilean Conformal Field Theories

TL;DR

This paper develops a Wilson line-based method to compute holographic entanglement entropy in 2+1 dimensional flat space and extends it to higher-spin theories, providing new insights into flat space holography.

Contribution

It introduces a Wilson line construction for holographic entanglement entropy in flat space and generalizes it to higher-spin theories, including thermal entropy calculations.

Findings

Wilson line method for flat space holography detailed

Extension to higher-spin flat space theories demonstrated

Thermal entropy of spin-3 charged cosmologies computed

Abstract

In this paper we will present in more detail a construction using Wilson lines and the corresponding dual Galilean conformal field theory calculations for analytically determining holographic entanglement entropy for flat space in $2+1$ dimensions first presented in hep-th/1410.4089. In addition we will show how the construction using Wilson lines can be expanded to flat space higher-spin theories and determine the thermal entropy of (spin-3 charged) flat space cosmologies using this approach.