Quantum Corrections on Fuzzy Sphere

Details Quantum Corrections on Fuzzy Sphere Quantum Corrections on Fuzzy Sphere

2003-03-13

arxiv.org/abs/hep-th/0303120v3

Nucl.Phys.B665:520-544,2003

Physics

High Energy Physics

High Energy Physics - Theory

27 pages, 1 figure, published version in Nucl Phys. B

Scientific paper

10.1016/S0550-3213(03)00491-7

We investigate quantum corrections in non-commutative gauge theory on fuzzy sphere. We study translation invariant models which classically favor a single fuzzy sphere with U(1) gauge group. We evaluate the effective actions up to the two loop level. We find non-vanishing quantum corrections at each order even in supersymmetric models. In particular the two loop contribution favors U(n) gauge group over U(1) contrary to the tree action in a deformed IIB matrix model with a Myers term. We further observe close correspondences to 2 dimensional quantum gravity.

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