Higher Order Integrability in Generalized Holonomy

TL;DR

This paper explores higher order integrability conditions in generalized holonomy for supersymmetric M-theory backgrounds, revealing that local curvature information alone is insufficient for classification.

Contribution

It demonstrates that higher order integrability conditions are essential in generalized holonomy, extending the understanding beyond curvature-based analysis.

Findings

Higher order integrability is crucial for generalized holonomy classification.

Local curvature information alone is incomplete for supersymmetric vacua.

Results align with the Ambrose-Singer holonomy theorem despite differences from Riemannian holonomy.

Abstract

Supersymmetric backgrounds in M-theory often involve four-form flux in addition to pure geometry. In such cases, the classification of supersymmetric vacua involves the notion of generalized holonomy taking values in SL(32,R), the Clifford group for eleven-dimensional spinors. Although previous investigations of generalized holonomy have focused on the curvature \Rm_{MN}(\Omega) of the generalized SL(32,R) connection \Omega_M, we demonstrate that this local information is incomplete, and that satisfying the higher order integrability conditions is an essential feature of generalized holonomy. We also show that, while this result differs from the case of ordinary Riemannian holonomy, it is nevertheless compatible with the Ambrose-Singer holonomy theorem.