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Paper   IPM / Physic / 6960
School of Physics
  Title:   PP-Wave Strings from Membrane and from String in the Spacetime with Two Time Directions
  Author(s):  D. Kamani
  Status:   Published
  Journal: Phys. Lett. B
  No.:  53
  Vol.:  564
  Year:  2003
  Pages:   123-131
  Supported by:  IPM
In this paper we obtain strings that propagate in the quantized pp-wave backgrounds. We can obtain these strings from the solutions of membrane. The other way is the propagation of a massless string in a spacetime with two time dimensions. This string sweeps a worldvolume, which enables us to obtain other strings in the quantized pp-wave backgrounds in the spacetime with one time direction. The associated algebras and Hamiltonians of these massive strings will be studied.

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