Deconstructing (2,0) and Little String Theories

TL;DR

This paper explores how certain 4D superconformal field theories, in specific limits, can be understood as higher-dimensional theories like (2,0) and little string theories, using orbifold realizations and string dualities.

Contribution

It demonstrates the emergence of six-dimensional (2,0) and little string theories from 4D SCFTs via orbifold constructions and dualities, providing insights into deconstructing M-theory.

Findings

Identification of spectrum responsible for extra dimensions

Establishment of equivalence through orbifold and dualities

Speculation on M-theory deconstructions

Abstract

We argue that two four-dimensional strongly coupled superconformal field theories, on the Higgs branch in certain large N limits, become respectively (2,0) theory and (1,1) little string theory in six dimensions. We identify the spectrum of states responsible for the generation of the two extra dimensions and string winding modes. We establish the equivalence using orbifold realizations of the field theories and exploiting string dualities. We also speculate on deconstructions of M-theory.