String bits without doubling

TL;DR

This paper develops a string bit model in a pp-wave background where fermion doubling ensures the correct string spectrum, providing a novel approach to string quantization.

Contribution

It introduces a string bit model that leverages fermion doubling to accurately reproduce the string spectrum in a pp-wave background.

Findings

Fermion doubling yields the correct string spectrum

The model successfully reproduces known string states

Provides a new framework for string quantization in curved backgrounds

Abstract

We construct a string bit model in the pp-wave background in which fermion doubling produces the correct spectrum of string states.