G2-structures and quantization of non-geometric M-theory backgrounds

Vladislav G. Kupriyanov*, Richard Joseph Szabo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)
55 Downloads (Pure)


We describe the quantization of a four-dimensional locally non-geometric M-theory background dual to a twisted three-torus by deriving a phase space star product for deformation quantization of quasi-Poisson brackets related to the nonassociative algebra of octonions. The construction is based on a choice of G2-structure which defines a nonassociative deformation of the addition law on the seven-dimensional vector space of Fourier momenta. We demonstrate explicitly that this star product reduces to that of the three-dimensional parabolic constant R-flux model in the contraction of M-theory to string theory, and use it to derive quantum phase space uncertainty relations as well as triproducts for the nonassociative geometry of the four-dimensional configuration space. By extending the G2-structure to a Spin(7)-structure, we propose a 3-algebra structure on the full eight-dimensional M2-brane phase space which reduces to the quasi-Poisson algebra after imposing a particular gauge constraint, and whose deformation quantisation simultaneously encompasses both the phase space star products and the configuration space triproducts. We demonstrate how these structures naturally fit in with previous occurences of 3-algebras in M-theory.

Original languageEnglish
Article number99
JournalJournal of High Energy Physics
Issue number2
Publication statusPublished - 20 Feb 2017


  • Flux compactifications
  • Non-Commutative Geometry

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


Dive into the research topics of 'G2-structures and quantization of non-geometric M-theory backgrounds'. Together they form a unique fingerprint.

Cite this