English

Aspects of ABJM orbifolds with discrete torsion

High Energy Physics - Theory 2015-05-20 v1

Abstract

We analyze orbifolds with discrete torsion of the ABJM theory by a finite subgroup Γ\Gamma of SU(2)×SU(2)SU(2)\times SU(2) . Discrete torsion is implemented by twisting the crossed product algebra resulting after orbifolding. It is shown that, in general, the order mm of the cocycle we chose to twist the algebra by enters in a non trivial way in the moduli space. To be precise, the M-theory fiber is multiplied by a factor of mm in addition to the other effects that were found before in the literature. Therefore we got a ZkΓm\mathbb{Z}_{\frac{k|\Gamma|}{m}} action on the fiber. We present a general analysis on how this quotient arises along with a detailed analysis of the cases where Γ\Gamma is abelian.

Keywords

Cite

@article{arxiv.1011.4733,
  title  = {Aspects of ABJM orbifolds with discrete torsion},
  author = {Mauricio Romo},
  journal= {arXiv preprint arXiv:1011.4733},
  year   = {2015}
}