Interaction of d=2 c=1 Discrete States from String Field Theory

Abstract

Starting from string field theory for 2d gravity coupled to c=1 matter we analyze the off-shell tree amplitudes of discrete states. The amplitudes exhibit the pole structure and we use the off-shell calculus to extract the residues and prove that just the residues are constrained by the Ward Identities. The residues generate a simple effective action.

LaTex, 9 pages

Cited by in corpus (3)

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• Lattice String Field Theory: The linear dilaton in one dimension
• Perturbative Calculations in the Effective Lagrangian and $2D$ Closed String Field Theory