An Effective Supergravity for the Thermal Phases of N=4 Strings

TL;DR

This paper constructs a universal supergravity Lagrangian to describe the thermal phases of various string theories, providing insights into their non-perturbative phase structures.

Contribution

It introduces a unified supergravity framework for heterotic, IIA, and IIB strings on specific compactifications, capturing their thermal phase behavior.

Findings

Universal supergravity Lagrangian for multiple string theories

Analysis of non-perturbative phase structure

Framework for understanding thermal phases of strings

Abstract

A universal effective supergravity Lagrangian describing the thermal phases of heterotic strings on T^4 x S^1, IIA and IIB strings on K^3 x S^1 is constructed. The resulting non-perturbative phase structure is discussed.