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NUCLEAR PHYSICS B
Volume 642, Issue 1-2, Pages 210-226Publisher
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DOI: 10.1016/S0550-3213(02)00682-X
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We investigate noncommutative gauge theories in homogeneous spaces G/H. We construct such theories by adding cubic terms to IIB matrix model which contain the structure constants of G. The isometry of a homogeneous space, G must be a subgroup of SO(10) in our construction. We investigate CP2 = SU(3)/U(2) case in detail which gives rise to 4-dimensional noncommutative gauge theory. We show that noncommutative gauge theory on R-4 can be realized in the large-N limit by letting the action approach IIB matrix modelin a definite way. We discuss possible relevances of these theories to the large-N limit of IIB matrix model. (C) 2002 Elsevier Science B.V. All rights reserved.
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