[ExI] QT and SR

Damien Broderick thespike at satx.rr.com
Wed Aug 27 17:47:35 UTC 2008

At 09:41 AM 8/27/2008 +0200, Serafino pointed to:

>   http://arxiv.org/abs/0808.3316

A physicist friend comments on this quote from the abstract:

>Interestingly, quantum physics predicts an entirely different kind 
>of cause for some correlations, named entanglement. This new kind of 
>cause reveals itself, e.g., in correlations that violate Bell 
>inequalities (hence cannot be described by common causes)

"Two quick comments: 1) Entanglement is not "entirely different", in 
that it is usually brought about by an interaction in their common 
past; and 2) The authors seem to be unaware that entanglement is also 
apparently possible due to interactions in their common future, see 
<http://arxiv.org/abs/quant-ph/0205182>this paper. "

That 2002 paper is by Zeilinger et al., and so deserves to be taken 
seriously, I think.

Damien Broderick

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