The NBI matrix model of IIB Superstrings

Abstract

We investigate the NBI matrix model with the potential $X\Lambda +X^{-1}+(2\eta +1)\log X$ recently proposed to describe IIB superstrings. With the proper normalization, using Virasoro constraints, we prove the equivalence of this model and the Kontsevich matrix model for $\eta \ne 0$ and find the explicit transformation between the two models.

LaTeX, 11pp