We review recent developments (up to January 2004) of the Liouville field theory and its
matrix model dual. This review consists of two parts. In part I, we review the bosonic Liouville …

This is a brief review of the current state of knowledge onlittle string theories', which are non-
gravitational theories having several string-like properties. We focus on the six-dimensional …

In this paper we study the spectrum of bosonic string theory on AdS 3. We study classical
solutions of the SL (2, R) WZW model, including solutions for long strings with nonzero …

The black-hole information paradox provides one of the sharpest foci for the conflict between
quantum mechanics and general relativity and has become the proving-ground of would-be …

A bstract Recently we proposed a universal solvable irrelevant deformation of AdS 3/CFT 2
duality, which leads in the ultraviolet to a theory with a Hagedorn entropy [1]. In this note we …

We show that the meromorphic Jacobi form that counts the quarter-BPS states in N= 4 string
theories can be canonically decomposed as a sum of a mock Jacobi form and an Appell …

We consider correlation functions for string theory on AdS 3. We analyze their singularities
and we provide a physical interpretation for them. We explain which worldsheet correlation …

The common statement that any consistent quantum gravity theory contains dynamical
objects with all possible charges suggests that there are still a number of hitherto …

We calculate the spectrum of a two dimensional CFT on a cylinder, perturbed by a general
linear combination of, and, by utilizing the relation of this problem to certain solvable single …

A bstract We propose a new AdS 3/CFT 2 duality, in which the bulk string theory has a target
spacetime AdS 3 times a squashed three-sphere\({\mathbbm {S}} _ {\flat}^ 3\), and the dual …