Superstring Backgrounds in String Geometry
Masaki Honda, Matsuo Sato, Taiki Tohshima

TL;DR
This paper demonstrates that various superstring backgrounds can be embedded within a single string geometry framework, with their classical dynamics and equations of motion captured by the model, advancing non-perturbative string theory understanding.
Contribution
It shows all major superstring backgrounds are embedded in string geometry configurations satisfying supergravity equations, linking classical string backgrounds to string geometry theory.
Findings
Superstring backgrounds are embedded in string geometry configurations.
Configurations satisfy supergravity equations of motion in the classical limit.
String backgrounds can be determined by energy minimization.
Abstract
String geometry theory is a candidate of the non-perturbative formulation of string theory. In order to determine the string vacuum, we need to clarify how superstring backgrounds are described in string geometry theory. In this paper, we show that all the type IIA, IIB, SO(32) type I, and SO(32) and heterotic superstring backgrounds are embedded in configurations of the fields of a single string geometry model. Especially, we show that the configurations satisfy the equations of motion of the string geometry model in if and only if the embedded string backgrounds satisfy the equations of motion of the supergravities, respectively. This means that classical dynamics of the string backgrounds are described as a part of classical dynamics in string geometry theory. Furthermore, we define an energy of the configurations in the string geometry model because…
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