Non-commutative gauge theory on D-branes in Melvin Universes

Details Non-commutative gauge theory on D-branes in Melvin Universes Non-commutative gauge theory on D-branes in Melvin Universes

2005-11-19

arxiv.org/abs/hep-th/0511197v2

JHEP 0601:083,2006

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, 1 figure, reference added

Scientific paper

10.1088/1126-6708/2006/01/083

Non-commutative gauge theory with a non-constant non-commutativity parameter can be formulated as a decoupling limit of open strings ending on D3-branes wrapping a Melvin universe. We construct the action explicitly and discuss various physical features of this theory. The decoupled field theory is not supersymmetric. Nonetheless, the Coulomb branch appears to remain flat at least in the large N and large 't Hooft coupling limit. We also find the analogue of Prasad-Sommerfield monopoles whose size scales with the non-commutativity parameter and is therefore position dependent.

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