Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2000-12-21
Nucl.Phys.B599:55-82,2001
Physics
High Energy Physics
High Energy Physics - Theory
31 pages, LaTeX2e; v2: a new section on superstring added; v3: typos corrected, version to appear in Nucl. Phys. B
Scientific paper
10.1016/S0550-3213(01)00038-4
We study coupling of noncommutative gauge theories on branes to closed string in the bulk. We derive an expression for the gauge theory operator dual to the bulk graviton, both in bosonic string theory and superstring theory. In either case, we find that the coupling is different from what was expected in the literature when the graviton is polarized in the noncommutative directions. In the case of superstring, the expression for the energy-momentum tensor is consistent with the way the bulk metric appears in the action for the noncommutative gauge theory. We also clarify some aspects of the correspondence between operators in the gauge theory and boundary conditions in the dual gravitational description.
Okawa Yuji
Ooguri Hirosi
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