Point-Like Interactions in String Theory Induced by 2-D Topological Gravity

TL;DR

This paper explores a string theory involving two string types interacting via 2D topological gravity, providing a light-cone string field theory with all-order interactions and boundary conditions.

Contribution

It introduces a novel string theory with geometric interactions mediated by 2D topological gravity, including a comprehensive light-cone string field formulation.

Findings

Strings with constant Dirichlet boundary conditions are glued by 2D topological gravity.

The theory includes interactions to all orders.

A light-cone string field theory formulation is provided.

Abstract

We consider a string theory with two types of strings with geometric interaction. We show that the theory contains strings with constant Dirichlet boundary condition and those strings are glued together by 2-d topological gravity with macroscopic boundaries. A light-cone string field theory is given and the theory has interactions to all orders. (Postscript files of the figures can be obtained by anonymous ftp uful07.phys.ufl.edu and are in the directory /het/ufift-hep-92-26.)