Lattice Supersymmetry via Twisting

Details Lattice Supersymmetry via Twisting Lattice Supersymmetry via Twisting

2004-09-03

arxiv.org/abs/hep-lat/0409015v1

Physics

High Energy Physics

High Energy Physics - Lattice

Contribution to Lattice2004(theory)

Scientific paper

10.1016/j.nuclphysbps.2004.11.18

We describe how the usual supercharges of extended supersymmetry may be {\it twisted} to produce a BRST-like supercharge $Q$. The usual supersymmetry algebra is then replaced by a twisted algebra and the action of the twisted theory is shown to be generically $Q$-exact. In flat space the twisting procedure can be regarded as a change of variables carrying no physical significance. However, the twisted theories can often be transferred to the lattice while preserving the twisted supersymmetry. As an example we construct a lattice version of the two-dimensional supersymmetric sigma model.

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