>> And "recorded" may not bring the right picture to mind. It is
[Bruce, I guess] >True. The loss of interference due to radiation of IR photons from >buckeyballs means that information does not have to be 'recorded' in a >concrete sense -- it just has to be available somewhere, even if >recovery is not practicable. "The superposition of amplitudes is only valid if there is no way to know, even in principle, which path the particle took. It is important to realize that this does not imply that an observer actually takes note of what happens. It is sufficient to destroy the interference pattern, if the path information is accessible in principle from the experiment or even if it is dispersed in the environment and beyond any technical possibility to be recovered, but in principle 'still out there'." --Anton Zeilinger, (Rev. Mod. Phys., 1999, p. S-288) -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
