On the sigma-model structure of type IIA supergravity action in doubled field approach

TL;DR

This paper integrates the doubled field approach with the Pasti-Sorokin-Tonin technique to formulate a sigma-model-like action for type IIA supergravity, exploring its connection to superstring/M-theory symmetries.

Contribution

It introduces a novel method combining doubled field and PST techniques to derive a sigma-model action for type IIA supergravity.

Findings

Successful construction of a sigma-model-like action for type IIA supergravity.

Discussion of the relation to superstring/M-theory hidden symmetries.

Framework potentially useful for understanding supergravity and string theory symmetries.

Abstract

In this letter we describe how to string together the doubled field approach by Cremmer, Julia, Lu and Pope with Pasti-Sorokin-Tonin technique to construct the sigma-model-like action for type IIA supergravity. The relation of the results with that of obtained in the context of searching for Superstring/M-theory hidden symmetry group is discussed.