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Foundations of Physics

, Volume 38, Issue 11, pp 1070–1071 | Cite as

Comment on: Nonlocal “Realistic” Leggett Models Can be Considered Refuted by the Before-Before Experiment

  • Marek Żukowski
Article

Abstract

It is shown here that Suarez (Found. Phys. 38:583, 2008) wrongly presents the assumptions behind the Leggett’s inequalities, and their modified form used by Groeblacher et al. (Nature 446:871, 2007) for an experimental falsification of a certain class of non-local hidden variable models.

Keywords

Time-ordered nonlocality Before-before experiment Leggett’s inequality Single preferred frame Influences from outside space-time 

References

  1. 1.
    Souarez, A.: Nonlocal “realistic” Leggett models can be considered refuted by the before-before experiment. Found. Phys. 38, 583 (2008) CrossRefADSGoogle Scholar
  2. 2.
    Gröblacher, S., Paterek, T., Kaltenbaek, R., Brukner, Č., Żukowski, M., Aspelmeyer, M., Zeilinger, A.: An experimental test of non-local realism. Nature 446, 871 (2007) CrossRefADSGoogle Scholar
  3. 3.
    Leggett, A.J.: Nonlocal hidden-variable theories and quantum mechanics: An incompatibility theorem. Found. Phys. 33, 1469 (2003) CrossRefMathSciNetGoogle Scholar
  4. 4.
    Gröblacher, S., Paterek, T., Kaltenbaek, R., Brukner, Č., Żukowski, M., Aspelmeyer, M., Zeilinger, A.: An experimental test of non-local realism. arXiv:0704.2529v2

Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.Institute for Theoretical PhysicsUniversity of GdanskGdanskPoland

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