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Paper   IPM / Physic / 7203
School of Physics
  Title:   A GHZ-Type Proof of Bell's Theorem for A Two-Particle Singlet State
1.  M. Golshani
2.  A. Shafiee
  Status:   Preprint
  No.:  0
  Year:  2001
  Supported by:  IPM
For the case of two spin-[1/2] particles in the singlet state, we provide a GHZ-type proof of Bell's theorem by using the idea of postselected measurements. Furthermore, we show that in spite of the low efficiency of the detectors one can derive an inequality in the case of real experiments which is violated by quantum mechanics.

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