> Il 23 ottobre 2018 alle 13.42 [email protected] ha scritto: > > > > On Tuesday, October 23, 2018 at 10:36:16 AM UTC, scerir wrote: > > > > > > > > > > > Il 23 ottobre 2018 alle 11.20 Philip Thrift < > > [email protected]> ha scritto: > > > > > > > > > > > > On Tuesday, October 23, 2018 at 1:41:06 AM UTC-5, scerir > > > wrote: > > > > > > > > > > > > > > > > > > The original 'cat' was, of course, Einstein's > > > > 'gunpowder' paradox. > > > > > > > > 'The system is a substance in chemically unstable > > > > equilibrium, perhaps a charge of gunpowder that, by means of intrinsic > > > > forces, can spontaneously combust, and where the average life span of > > > > the whole setup is a year. In principle this can quite easily be > > > > represented quantum-mechanically. In the beginning the psi-function > > > > characterizes a reasonably well-defined macroscopic state. But, > > > > according to your equation [i.e., the Schrödinger equation], after the > > > > course of a year this is no longer the case. Rather, the psi-function > > > > then describes a sort of blend of not-yet and already-exploded systems. > > > > Through no art of interpretation can this psi-function be turned into > > > > an adequate description of a real state of affairs; in reality there is > > > > no intermediary between exploded and not-exploded.' > > > > > > > > Letter from Einstein to Schrödinger, dated 8 August > > > > 1935. in Fine, A. The Shaky Game: Einstein, Realism, and the Quantum > > > > Theory, University of Chicago Press, Chicago (1986). Letter from > > > > Einstein to Schrödinger, dated 8 August 1935. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Through no art of interpretation can this psi-function be > > > turned into an adequate description of a real state of affairs; in > > > reality there is no intermediary between exploded and not-exploded.' > > > > > > > > > This is interesting. > > > > > > Einstein (but other physicists too) avoiding retrocausality > > > and stochasticity, like vampires avoiding sunlight and running water. :) > > > > > > -pt > > > > > > > > > > > > > > > > There are situations in which a superposition is a superposition > > and not an "expectation-catalogue" or a mixture. See > > https://www.springer.com/gp/book/9780306456602 > > https://www.springer.com/gp/book/9780306456602 pages 8 etc. > > > > > > Can you post the relevant pages? The cost for access is high. TIA, AG >
Try this (it is a very good book) https://tinyurl.com/y7f6y7rs and read page 11 > > > > > > > > > > > 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 [email protected]. > To post to this group, send email to [email protected]. > Visit this group at > https://groups.google.com/group/everything-list > https://groups.google.com/group/everything-list . > For more options, visit https://groups.google.com/d/optout > https://groups.google.com/d/optout . > > -- 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 [email protected] mailto:[email protected] . To post to this group, send email to [email protected] mailto:[email protected] . Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout. -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
