Scerir wrote:
> In a parallel paper (38 pages)
> http://arxiv.org/abs/quant-ph/0009062
> Henry P. Stapp is trying to explain non-locality by means of his
> quantum-mind-brain model.
I prefer Deutsch's formulation in which he shows a way of looking
at quantum physics which is purely local:
http://xxx.lanl.gov/abs/quant-ph/9906007
All information in quantum systems is, notwithstanding Bell's
theorem, localised. Measuring or otherwise interacting with a
quantum system S has no effect on distant systems from which S is
dynamically isolated, even if they are entangled with S. Using the
Heisenberg picture to analyse quantum information processing makes
this locality explicit, and reveals that under some circumstances
(in particular, in Einstein-Podolski-Rosen experiments and in quantum
teleportation) quantum information is transmitted through 'classical'
(i.e. decoherent) information channels.
However I must admit that I can't follow his physics; this Heisenberg
formulation is much more complex than the familiar equations due to Bohr.
Apparently this paper has now appeared in the Proceedings of the Royal
Society, so hopefully it will get more attention and critical review.
BTW Deutsch's home page at http://www.qubit.org/people/david/David.html
has links to this and some other papers, plus some personal material
that is quite interesting. What Star Trek TNG episode transformed
Captain Picard's outward appearance (but not his mind) so radically
that the crew refused to follow his orders? See Deutsch's article,
The Final Prejudice, at http://www.webleyweb.com/tle/le970401-10.html.
(Also has relevance to Barbara's point about "appearance" and humanity.)
Finally, there is a mailing list at www.egroups.com on Deutsch's book
The Fabric of Reality, in which Deutsch participates very generously.
Unfortunately the quality of the discussion is low, much mystical talk
about parallel universes explaining ESP, etc.
Hal
This archive was generated by hypermail 2b29 : Mon Oct 02 2000 - 17:38:25 MDT