String Duality and Novel Theories without Gravity

TL;DR

This paper explores new six-dimensional quantum field theories discovered through string duality, discussing their potential to address vacuum degeneracy issues and presenting DLCQ as a formulation independent of string theory.

Contribution

It introduces novel 6d quantum field theories from string duality studies and proposes DLCQ as a way to formulate them without relying on string theory.

Findings

Identification of new 6d quantum field theories

Potential role in solving vacuum degeneracy problem

DLCQ formulation independent of string theory

Abstract

We describe some of the novel 6d quantum field theories which have been discovered in studies of string duality. The role these theories (and their 4d descendants) may play in alleviating the vacuum degeneracy problem in string theory is reviewed. The DLCQ of these field theories is presented as one concrete way of formulating them, independent of string theory.