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H. Dieter Zeh replied to the topic Non-local beables in the forum John Bell Workshop 2014 9 years, 9 months ago
I agree – but why then do we need non-local hidden variables instead of the wave function itself? Or do you think you can avoid Many Worlds?
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H. Dieter Zeh replied to the topic The Assumptions of Bell’s Proof in the forum John Bell Workshop 2014 9 years, 9 months ago
Ruth, I don’t intend here to discuss the transactional interpretation, but the ´´result of a collapse´´ in the usual sense is a new global wave function, and hence still kinematically non-local. Only certain macroscopic aspects of this state may be approximately local, and even this is so just by construction: the collapse is usually defined to mi…[Read more]
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H. Dieter Zeh replied to the topic The Assumptions of Bell’s Proof in the forum John Bell Workshop 2014 9 years, 9 months ago
It is often amazing to see how far definitions of the same term may differ when used by different physicists. Roderich Tumulka offers four definitions of reality, and he argues that the Many Words interpretation is in conflict already with the weakest of them (his R4). Accordingly, it would violate the reality assumption most strongly. I…[Read more]
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I would just note that the assertion that decoherence can define a basis in the Everettian approach is far from settled science, and has been contested in particular in http://arxiv.org/abs/1406.4126 (Kastner 2014, SHPMP 48, 56-58)
Given a universal wave function and nothing else, we get the Everettian picture. But more generally, taking the wave…[Read more]
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H. Dieter Zeh replied to the topic Bell on Bell’s theorem: The changing face of nonlocality in the forum John Bell Workshop 2014 9 years, 9 months ago
If my link does not work, please use http://www.rzuser.uni-heidelberg.de/~as3/nonlocality.html (or insert the missing slash before nonlocality in the replaced website by hand)!
Sorry for the inconvenience! -
H. Dieter Zeh replied to the topic Bell on Bell’s theorem: The changing face of nonlocality in the forum John Bell Workshop 2014 9 years, 10 months ago
Much of Christopher Timpson’s paper is ´´philological´´ or historical and about the different or changing use of concepts and words. This is quite intersting and potentially important, but not what I am mainly interested in. However, in the context of Everett, the concept of (non)locality seems to be quite clear to me. If you accept the ontic…[Read more]
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H. Dieter Zeh started the topic John Bell's Varying Interpretations of Quantum Mechanics in the forum John Bell Workshop 2014 9 years, 10 months ago
Various interpretations of quantum mechanics, favored (or neglected) by John Bell in the context of his non-locality theorem, are compared and discussed. Full text can be read here.
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H. Dieter Zeh joined the group John Bell Workshop 2014 9 years, 10 months ago
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H. Dieter Zeh changed their profile picture 9 years, 11 months ago
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H. Dieter Zeh changed their profile picture 9 years, 11 months ago