Master loop equations, free energy and correlations for the chain of matrices.
Résumé
The loop equations for a chain of hermitian random matrices arecomputed explicitely, including the 1/N^2 corrections.To leading order, the master loop equation reduces to analgebraic equation, whose solution can be written in terms ofgeometric properties of the underlying algebraic curve.In particular we compute the free energy, the resolvents,the 2-loop functions and some mixed one loop functions.We also initiate the calculation of the 1/N^2 expansion.
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