Non-Supersymmetric Gauge Theories from D-Branes in Type 0 String Theory

TL;DR

This paper constructs non-supersymmetric four-dimensional gauge theories from D-branes in Type 0 string theory, exploring their conformal properties, dualities, and brane configurations.

Contribution

It introduces new non-supersymmetric gauge theories from Type 0 string setups, including conformal models and duality analyses, expanding the understanding of gauge/string correspondences.

Findings

Examples of conformal non-supersymmetric theories on orbifolds

Type 0 Hanany-Witten brane configurations and spectra

Discussion of potential Seiberg-like dualities in non-supersymmetric models

Abstract

We construct non-supersymmetric four dimensional gauge theories arising as effective theories of D-branes placed on various singularities in Type 0B string theory. We mostly focus on models which are conformal in the large N limit and present both examples appearing on self-dual D3-branes on orbifold singularities and examples including orientifold planes. Moreover, we derive type 0 Hanany-Witten setups with NS 5-branes intersected by D-branes and the corresponding rules for determining the massless spectra. Finally, we discuss possible duality symmetries (Seiberg-duality) for non-supersymmetric gauge theories within this framework.