Non-Supersymmetric Large N Gauge Theories from Type 0 Brane Configurations

TL;DR

The paper addresses constructing and understanding non-supersymmetric gauge theories at large $N$ by leveraging dyonic brane configurations in type 0 string theory. It develops non-SUSY analogues of ${\cal N}=2$ and ${\cal N}=1$ theories, proposes candidate non-SUSY CFTs, and demonstrates a brane-based realization of a non-SUSY Seiberg duality, arguing that untwisted large-$N$ amplitudes reproduce those of the SUSY parent in appropriate regimes. Key contributions include the type 0 realizations of ${\cal N}=2$ and ${\cal N}=1$ brane setups, predictions of conformal windows (e.g., $\beta$-function forms $\beta=2N_c-N_f$ and $\beta=3N_c-N_f$), and the construction of non-SUSY brane-box finite models that yield new CFTs beyond orbifold frameworks. These results suggest that non-SUSY large-$N$ dynamics can closely mirror supersymmetric parents in the untwisted sector, enabling tractable analyses of conformality, dualities, and moduli spaces in a controlled setting.

Abstract

We use dyonic brane configurations of type 0 string theory to study large N non-supersymmetric 4d gauge theories. The brane configurations define theories similar to the supersymmetric ones which arise in type II. We find the non-SUSY analogues of N=2 and N=1. In particular we suggest new non-SUSY CFT's and a brane realization of a non-SUSY Seiberg duality.

Figures (2)

• Figure 1: The "${\cal N}=2\ $ " type 0 brane configuration. Each dyonic brane can be viewed as a pair of electric and magnetic branes.
• Figure 2: Finite brane-boxes theories. There are $k\times k'$ boxes. The drawn 46 plane is a torus.