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Paper   IPM / Physic / 6942
School of Physics
  Title:   Three Body Bound State in Noncommutative Space
1.  M. Haghighat
2.  F. Loran
  Status:   Published
  Journal: Phys. Rev. D
  No.:  50
  Vol.:  67
  Year:  2003
  Pages:   096003
  Supported by:  IPM
The Bethe-Salpeter equation in non-commutative QED (NCQED) is considered for three-body bound state. We study the non-relativistic limit of this equation in the instantaneous approximation and derive the corresponding Schrödinger equation in non-commutative space. It is shown that the experimental data for Helium atom puts an upper bound on the magnitude of the parameter of non-commutativity, θ ∼ 10−9λe2.

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