On the Chemical Potential of D-instantons in c=0 Noncritical String Theory

TL;DR

This paper introduces an alternative method to calculate the chemical potential of D-instantons in c=0 noncritical string theory, building on previous matrix model approaches and providing a potentially more generalizable technique.

Contribution

It presents a new method for computing the chemical potential of D-instantons, expanding the toolkit beyond orthogonal polynomial techniques in matrix models.

Findings

Calculated the chemical potential using the new method.

Confirmed the universal value in the double scaling limit.

Provided insights into noncritical string theory dynamics.

Abstract

We study the chemical potential of D-instantons in c=0 noncritical string theory. In a recent work(hep-th/0405076), it was shown that the chemical potential can be calculated using the one matrix model. The calculation was done using the method of orthogonal polynomials and the authors obtained a universal value in the double scaling limit. We present an alternative method to calculate this value.