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Paper   IPM / P / 6694
School of Physics
  Title:   Supergravity and Large N Noncommutative Field Theories
1.  M. Alishahiha
2.  Y. Oz
3.  M.M. Sheikh-Jabbari
  Status:   Published
  Journal: JHEP
  No.:  13
  Vol.:  11
  Year:  1999
  Pages:   007
  Supported by:  IPM
We consider systems of Dp branes in the presence of a nonzero B field. We study the corresponding supergravity solutions in the limit where the branes worldvolume theories decouple from gravity. These provide dual descriptions of large N noncommutative field theories. We analyse the phase structure of the theories and the validity of the different description. We provide evidence that in the presence of a nonzero B field the worldvolume theory of D6 branes decouples from gravity. We analyse the systems of M5 branes and NS5 branes in the presence of a nonzero C field and nonzero RR fields, respectively. Finally, we study the Wilson loops (surfaces) using the dual descriptions.

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