Universality of Nonperturbative Effects in c<1 Noncritical String Theory

TL;DR

This paper investigates nonperturbative effects in c<1 noncritical string theory using the two-matrix model, revealing universal coefficients that are finite and independent of potential details.

Contribution

It introduces a method to determine the numerical coefficients of nonperturbative effects in (p,q) string theory, demonstrating their universality and finiteness.

Findings

Coefficients are finite in the double scaling limit.

Coefficients are universal, independent of potential details.

Method allows explicit calculation of nonperturbative effects.

Abstract

Nonperturbative effects in c<1 noncritical string theory are studied using the two-matrix model. Such effects are known to have the form fixed by the string equations but the numerical coefficients have not been known so far. Using the method proposed recently, we show that it is possible to determine the coefficients for (p,q) string theory. We find that they are indeed finite in the double scaling limit and universal in the sense that they do not depend on the detailed structure of the potential of the two-matrix model.