Generating Functional in String Field Theory

TL;DR

This paper develops a path integral formalism for string field theory by introducing a general functional field approach, providing a method for calculation and deriving the generating functional for open bosonic strings.

Contribution

It introduces a novel path integral framework for string field theory based on functional fields and derives the generating functional for open bosonic strings.

Findings

Established a path integral formalism for string fields.

Derived the generating functional for open bosonic strings.

Presented a method for calculating in the Gauss-type case.

Abstract

In our paper, we introduce a path integral of general functional field in order to build the path integral formalism in string field theory from the fact that a string field is a functional field, and describe a method for calculating it in the case of "Gauss-type". We also obtain the generating functional of an open bosonic string and the corresponding Feynman diagram.