Existential Contextuality and the Models of Meyer, Kent and Clifton
Quantum Physics
2009-11-06 v4
Abstract
It is shown that the models recently proposed by Meyer, Kent and Clifton (MKC) exhibit a novel kind of contextuality, which we term existential contextuality. In this phenomenon it is not simply the pre-existing value but the actual existence of an observable which is context dependent. This result confirms the point made elsewhere, that the MKC models do not, as the authors claim, ``nullify'' the Kochen-Specker theorem. It may also be of some independent interest.
Keywords
Cite
@article{arxiv.quant-ph/0005056,
title = {Existential Contextuality and the Models of Meyer, Kent and Clifton},
author = {D. M. Appleby},
journal= {arXiv preprint arXiv:quant-ph/0005056},
year = {2009}
}
Comments
Revtex, 7 pages, 1 figure. Replaced with published version