Perturbation Theory in Two Dimensional Open String Field Theory

Abstract

In this paper we develop the covariant string field theory approach to open 2d strings. Upon constructing the vertices, we apply the formalism to calculate the lowest order contributions to the 4- and 5- point tachyon--tachyon tree amplitudes. Our results are shown to match the `bulk' amplitude calculations of Bershadsky and Kutasov. In the present approach the pole structure of the amplitudes becomes manifest and their origin as coming from the higher string modes transparent.

26 pages

References in corpus (8)

• Introduction to string field theory
• Closed String Field Theory: Quantum Action and the BV Master Equation
• Algebraic Structures and Differential Geometry in 2D String Theory
• Interaction of Discrete States in Two-Dimensional String Theory
• BRST Analysis of Physical States for 2D (Super) Gravity Coupled to (Super) Conformal Matter
• Ground Rings and Their Modules in 2D Gravity with $c\le 1$ Matter
• Classical Scattering in $1+1$ Dimensional String Theory
• Open String Theory in 1+1 Dimensions

Cited by in corpus (3)

• Off-Shell Amplitudes in Two Dimensional String Field Theory
• Scattering of Discrete States in Two Dimensional Open String Field Theory
• Perturbative Calculations in the Effective Lagrangian and $2D$ Closed String Field Theory