Non-Perturbative String Equations for Type 0A

TL;DR

This paper develops non-perturbative string equations for type 0A theories, exploring a broad class of models that include D-branes, fluxes, and tachyon condensation, revealing new physical phenomena and stability features.

Contribution

It introduces a large family of non-perturbative type 0A string models based on superconformal minimal series coupled to gravity, extending previous results and uncovering new physical insights.

Findings

Non-perturbative descriptions of D-brane and flux transitions

Identification of stable string equations in a broad model class

Analysis of the super-dressed tricritical Ising model

Abstract

Well-defined non-perturbative formulations of the physics of string theories, sometimes with D-branes present, were identified over a decade ago, from a careful study of double scaled matrix models. Following recent work which recasts some of those old results in the context of type 0 string theory, a study is made of a much larger family of models, which are proposed as type 0A models of the entire superconformal minimal series coupled to gravity. This gives many further examples of important physical phenomena, including non-perturbative descriptions of transitions between D-branes and fluxes, tachyon condensation, and holography. In particular, features of a large family of non-perturbatively stable string equations are studied, and results are extracted which pertain to type 0A string theory, with D-branes and fluxes, in this large class of backgrounds. For the entire construction to work, large parts of the spectrum of the supergravitationally dressed superconformal minimal models and that of the gravitationally dressed bosonic conformal minimal models must coincide, and it is shown how this happens. The example of the super-dressed tricritical Ising model is studied in some detail.