| Issue |
EPL
Volume 90, Number 4, May 2010
|
|
|---|---|---|
| Article Number | 40002 | |
| Number of page(s) | 3 | |
| Section | General | |
| DOI | https://doi.org/10.1209/0295-5075/90/40002 | |
| Published online | 09 June 2010 | |
A variant of Peres-Mermin proof for testing noncontextual realist models
CAPSS, Department of Physics, Bose Institute, Sector-V - Salt Lake, Calcutta 700091, India
Corresponding author: apan@bosemain.boseinst.ac.in
Received:
11
January
2010
Accepted:
11
May
2010
For any state in a four-dimensional system, the quantum violation of an inequality based on the Peres-Mermin proof for testing noncontextual realist models has experimentally been corroborated. In the Peres-Mermin proof, an array of nine holistic observables for two two-qubit systems was used. In this letter, we present a new symmetric set of observables for the same system which also provides a contradiction of quantum mechanics with noncontextual realist models in a state-independent way. The whole argument can also be cast in the form of a new inequality that can be empirically tested.
PACS: 03.65.Ta – Foundations of quantum mechanics; measurement theory
© EPLA, 2010
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