From noncommutative string/membrane to ordinary ones

Details From noncommutative string/membrane to ordinary ones From noncommutative string/membrane to ordinary ones

2001-01-06

arxiv.org/abs/hep-th/0101039v2

JHEP 0104:015,2001

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, Latex. Comments added and typos corrected

Scientific paper

10.1088/1126-6708/2001/04/015

We discuss origin of equivalence between noncommutative and ordinary Yang-Mills from point of view of string theory. Working in BRST/Hamiltonian framework first we investigate string model in the decoupling limit and show that change of variables and applying the conversion of constraints of decoupled string theory gives commuting coordinates on the D-brane. Also, we discuss algebra of constraints in general case and show the ways of having commutative coordinates without going to decoupling limit. It could be argued that noncommutative string in B-field is equivalent to the commutative model. We investigate the case of the membrane ending on the M-5-brane in constant C-field and discuss noncommutative/commutative equivalence in this case.

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