The bells-inequality tag has no wiki summary.
18
votes
4answers
1k views
Is Stephen Wolfram's NKS, an attempt to explain the universe with cellular automata, in conflict with Bell's Theorem?
Stephen Wolfram's A New Kind of Science (NKS) hit the bookstores in 2002 with maximum hype.
His thesis is that the laws of physics can be generated by various cellular automata--simple programs ...
13
votes
5answers
786 views
What combinations of realism, non-locality, and contextuality are ruled out in quantum theory?
Bell's inequality theorem, along with experimental evidence, shows that we cannot have both realism and locality. While I don't fully understand it, Leggett's inequality takes this a step further and ...
4
votes
3answers
386 views
How does Bell's theorem rule out the possibility of local hidden variables?
It seems to be common consensus that the world is non-deterministic and this is proved by Bell's theorem.
But even though Bell's experiments proved that the theory of quantum mechanics work, How does ...
9
votes
6answers
2k views
Disproof of Bell’s Theorem
The half-page arxiv doc by Joy Christian of Oxford Uni, UK has the Title and Abstract:
Disproof of Bell’s Theorem
We illustrate an explicit
counterexample to Bell’s theorem by
constructing a ...
10
votes
3answers
463 views
Bell's theorem and why nonlocality is problematic
I generally hear it assumed that Bell's inequality implies violation of counterfactual definiteness, because locality is considered sacrosanct. I understand of course that measurable violations of ...
2
votes
0answers
118 views
Do Bell inequality violations appear instantly when the source is turned on, or do they increase over time?
This experimental Question is a result of reading a particular article on Bell violations. I addressed the e-mail below to the corresponding authors —because who knows, they might reply— but it is not ...
2
votes
4answers
195 views
How do we know that there isn't a classical solution to the measurement problem/Quantum Mechanical uncertainty?
It was mentioned to me that it can be shown that there is no classical explanation for the uncertainty in Quantum Mechanics -- i.e. that there are no hidden workings that we have just not yet seen, ...
4
votes
3answers
377 views
How can we be sure that nature isn't “faking” quantum statistics?
In a recent publication, Experimentally Faking the Violation of Bell’s Inequalities (Gerhardt 2011) (arXiv version), the statistics of quantum mechanics is faked using classical light sources.
But if ...
