arXiv subjects

A. D'Adda

Publications and source records attributed to A. D'Adda.

20 records · Page 2Linked to original sources

arXiv1992

Exact solution of d=1 Kazakov-Migdal induced gauge theory

We give the exact solution of the Kazakov-Migdal induced gauge model in the case of a D=1 compactified lattice with a generic number $S$ of sites and for any value of N. Due to the peculiar features of the model, the partition function that we obtain also describes the vortex-free sector of the D=1 compactified bosonic string, and it coincides in the continuum limit with the one obtained by Boulatov and Kazakov in this context.

hep-th↗

arXiv1992

New Methods of Integration in Matrix Models

We discuss a new method of integration over matrix variables based on a suitable gauge choice in which the angular variables decouple from the eigenvalues at least for a class of two-matrix models. The calculation of correlation functions involving angular variables is simple in this gauge. Where the method is applicable it also gives an extremely simple proof of the classical integration formula used to reduce multi-matrix models to an integral over the eigenvalues.

hep-th↗