Talk:GHZ experiment
From Wikipedia, the free encyclopedia
 |
This article is within the scope of WikiProject Physics, which collaborates on articles related to physics. |
| ??? | This article has not yet received a rating on the assessment scale. [FAQ] |
| ??? | This article has not yet received an importance rating within physics. |
|
Help with this template Please rate this article, and then leave comments to explain the ratings and/or to identify its strengths and weaknesses. |
|
A couple of questions:
1. Why should there necessarily be only the one hidden variable λ? In a paper I've just glanced through (Greenberger, Daniel M, “Two-particle versus three-particle EPR experiments”, Annals of the New York Academy of Sciences 755, 585-599 (1995)) they allow for three hidden variables, though (for some reason I have not yet fathomed) restricted so that the sum is zero.
2. Has the QM prediction been experimentally verified?
Caroline Thompson 18:02, 20 Aug 2004 (UTC)
[edit] Actual experiments
This experiment has taken place (at least once!). Here is one: http://arxiv.org/abs/quant-ph/9810035
Here is a local hidden variable theory that creeps in through error in a real experiment (where the simultaneous eigenstate cannot be obtained, only an approximate eigenstate obtained) http://arxiv.org/pdf/quant-ph/0007102
And here is an analysis of the results of the experiment, that claims to eliminate the possibility of a LHVT explaining the results of that experiment http://arxiv.org/pdf/quant-ph/9811013
