Abstract:
We compute the bulk three- and four-point tachyon correlators in the 2d Liouville gravity with a nonrational matter central charge c<1c<1, using and comparing two approaches. The continuous CFT approach exploits the action on the tachyons of the ground-ring generators deformed with Liouville and matter screening charges. We derive a general formula for the matter three-point OPE structure constants as a by-product. The discrete formulation of the theory is a generalization of the ADEADE string theories, in which the target space is the semi-infinite chain of points.
Keywords:
noncritical strings, conformal field theory, two-dimensional gravity, loop gas.
Citation:
I. K. Kostov, V. B. Petkova, “Bulk Correlation Functions in 2d Quantum Gravity”, TMF, 146:1 (2006), 132–145; Theoret. and Math. Phys., 146:1 (2006), 108–118
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