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Paper   IPM / Physic / 6949
School of Physics
  Title:   Semiclassical String Solutions on Deformed NS5-Brane Backgrounds And New Plane Wave
1.  M. Alishahiha
2.  Amir E. Mosaffa
  Status:   Published
  Journal: Int. J. Mod. Phys. A
  No.:  16
  Vol.:  19
  Year:  2004
  Pages:   2755-2770
  Supported by:  IPM
We study different Penrose limits of supergravity solution of NS5-brane in the presence of RR field. Although in the case of NS5-brane we get a 4-dimensional plane wave, in the case with RR field we will get two different plane waves; a 4-dimensional and a 3-dimensional one. These plane wave solutions are the backgrounds that a particular string solution feels at one loop approximation. Using the one loop correction one can identify a particular subsector of LST/deformed LST which is dual to type II string theories on these plane waves.

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