Field theory actions for ambitwistor string and superstring

TL;DR

This paper investigates the ambitwistor string field theory actions across various string theories, highlighting spectrum properties and testing consistency of one-loop computations.

Contribution

It provides a detailed analysis of ambitwistor string field theory actions for multiple string types, including spectrum and consistency checks.

Findings

Spectrum includes non-unitary states.

Provides a consistency test for one-loop ambitwistor computations.

Analyzes actions for bosonic, heterotic, and Type II strings.

Abstract

We analyze the free ambitwistor string field theory action for the bosonic string, heterotic string and both GSO sectors of the Type II string. The spectrum contains non-unitary states and provides an interesting consistency test for one-loop ambitwistor string computations.