Scattered Results in 2D String Theory

TL;DR

This paper computes the nonperturbative $1\to N$ tachyon scattering amplitude in 2D type 0A string theory, revealing that particle production probability decreases with increasing $N$, and compares results with black hole thermodynamics expectations.

Contribution

It provides the first nonperturbative calculation of $1\to N$ tachyon scattering in 2D type 0A string theory and relates findings to black hole thermodynamics.

Findings

Probability decreases monotonically with $N$ for large $N$

Results align with black hole thermodynamics expectations

Provides nonperturbative insights into 2D string scattering

Abstract

The nonperturbative $1\to N$ tachyon scattering amplitude in 2D type 0A string theory is computed. The probability that $N$ particles are produced is a monotonically decreasing function of $N$ whenever $N$ is large enough that statistical methods apply. The results are compared with expectations from black hole thermodynamics.