Perturbative S-matrix in discretized light cone quantization of two-dimensional \phi^4 theory

TL;DR

This paper investigates the S-matrix in two-dimensional b5b4b4 theory using Discretized Light Cone Quantization, demonstrating how to recover the correct continuum limit in lowest order perturbation theory.

Contribution

It provides a detailed analysis of the continuum limit in discretized light cone quantization for b5b4b4 theory, highlighting the method's effectiveness.

Findings

Successfully reproduces the continuum S-matrix in lowest order perturbation theory.

Clarifies the conditions for correct continuum limit in discretized light cone quantization.

Abstract

We study the S-matrix of two-dimensional \lambda\phi^4 theory in Discretized Light Cone Quantization and show how the correct continuum limit is reached for various processes in lowest order perturbation theory.