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A testable prediction of the no-signalling condition using a variant of the EPR-Bohm example

Quantum Physics 2015-06-12 v1

Abstract

Predictive power of the no-signalling condition (NSC) is demonstrated in a testable situation involving a non-ideal Stern-Gerlach (SG) device in one of the two wings of the EPR-Bohm entangled pairs. In this wing, for two types of measurement in the other wing, we consider the spin state of a selected set of particles that are confined to a particular half of the plane while emerging from the SG magnetic field region. Due to non-idealness of the SG setup, this spin state will have superposing components involving a relative phase for which a testable quantitative constraint is obtained by invoking NSC, thereby providing a means for precision testing of this fundamentally significant principle.

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Cite

@article{arxiv.1301.7545,
  title  = {A testable prediction of the no-signalling condition using a variant of the EPR-Bohm example},
  author = {Dipankar Home and Ashutosh Rai and A. S. Majumdar},
  journal= {arXiv preprint arXiv:1301.7545},
  year   = {2015}
}

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7 pages