$W$-Infinity Ward Identities and Correlation Functions in the $C=1$ Matrix Model

Details $W$-Infinity Ward Identities and Correlation Functions in the $C=1$ Matrix Model $W$-Infinity Ward Identities and Correlation Functions in the $C=1$ Matrix Model

1991-12-19

arxiv.org/abs/hep-th/9112052v1

Mod.Phys.Lett. A7 (1992) 937-954; Erratum-ibid. A7 (1992) 2245

Physics

High Energy Physics

High Energy Physics - Theory

17 pages

Scientific paper

10.1142/S0217732392000835

We explore consequences of $W$-infinity symmetry in the fermionic field theory of the $c=1$ matrix model. We derive exact Ward identities relating correlation functions of the bilocal operator. These identities can be expressed as equations satisfied by the effective action of a {\it three} dimensional theory and contain non-perturbative information about the model. We use these identities to calculate the two point function of the bilocal operator in the double scaling limit. We extract the operator whose two point correlator has a {\it single} pole at an (imaginary) integer value of the energy. We then rewrite the \winf~ charges in terms of operators in the matrix model and use this derive constraints satisfied by the partition function of the matrix model with a general time dependent potential.

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