Bell’s theorem still reverberates - article

[StevieTNZ]

Forwarded an article onto a Professor of Physics, and he replied with a comment about an article he'd written for Nature.

The link is http://www.nature.com/news/physics-bell-s-theorem-still-reverberates-1.15435

I thought I'd share it with you as some may be interested in reading it.

In 1964, Northern Irish physicist John Bell proved mathematically that certain quantum correlations, unlike all other correlations in the Universe, cannot arise from any local cause. This theorem has become central to both metaphysics and quantum information science. But 50 years on, the experimental verifications of these quantum correlations still have ‘loopholes’, and scientists and philosophers still dispute exactly what the theorem states.

 

[jedishrfu]

Interesting article. Bell's theorem always comes up when we discuss QM ideas at work. From my perspective, its quite profound to think that no hidden variables can be used to explain some QM event and that spooky action remains.

 

[Demystifier]

no hidden variables can be used to explain some QM event

You mean no LOCAL hidden variables?

 

[jedishrfu]

Yes, your're right no local hidden variables.

http://en.wikipedia.org/wiki/Bell's_theorem

 

[DrChinese]

Good article.