• Corpus ID: 14846165

Quasi-quantum groups from Kalb-Ramond fields and magnetic amplitudes for strings on orbifolds

@article{Jureit2006QuasiquantumGF,
  title={Quasi-quantum groups from Kalb-Ramond fields and magnetic amplitudes for strings on orbifolds},
  author={Jan-Hendrik Jureit and Thomas Krajewski},
  journal={arXiv: High Energy Physics - Theory},
  year={2006}
}
We present the general form of the operators that lift the group action on the twisted sectors of a bosonic string on an orbifold ${\cal M}/G$, in the presence of a Kalb-Ramond field strength $H$. These operators turn out to generate the quasi-quantum group $D_{\omega}[G]$, introduced in the context of orbifold conformal field theory by R. Dijkgraaf, V. Pasquier and P. Roche. The 3-cocycle $\omega$ entering in the definition of $D_{\omega}[G]$ is related to $H$ by a series of cohomological… 

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