> 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 pages 8 etc. 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.
