Algebraic Structure in 0<c<1 Open-Closed String Field Theories
Daiji Ennyu, Hiroshi Kawabe, Naohito Nakazawa
Abstract
We apply stochastic quantization method to Kostov's matrix-vector models for the second quantization of orientable strings with Chan-Paton like factors, including both open and closed strings. The Fokker-Planck hamiltonian deduces an orientable open-closed string field theory at the double scaling limit. There appears an algebraic structure in the continuum F-P hamiltonian including a Virasoro algebra and a SU(r) current algebra.
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