On Thursday, October 10, 2019 at 5:29:32 AM UTC-5, John Clark wrote: > > On Thu, Oct 10, 2019 at 3:34 AM Philip Thrift <[email protected] > <javascript:>> wrote: > > *>>> Other interpretations (but not MWI, as far as I can see) are used in >>>> writing programs for computational QM.* >>> >>> >>> >> Like what? >>> >> >> *> Multiple Histories.* >> > > And Multiple Histories uses path integral formulation and path integral > formulation uses renormalization theory which is entirely in sympathy with > the Shut Up And Calculate Interpretation; it's a wonderful way of getting > the right answer, Feynman won a Nobel Prize for inventing it, but he was > never entirely comfortable with it because it gave no coherent mental > picture. He didn't even try to hide the imperfections in his idea. In his > Nobel lecture Feynman said: > > *"I don’t think we have a completely satisfactory relativistic > quantum-mechanical model, even one that doesn’t agree with nature, but, at > least, agrees with the logic that the sum of probability of all > alternatives has to be 100%. Therefore, I think that the renormalization > theory is simply a way to sweep the difficulties of the divergences of > electrodynamics under the rug. I am, of course, not sure of that."* > > He is also well known for saying: > > *"**I think I can safely say that nobody understands quantum mechanics."* > > John K Clark >
In any case, PIs are good for grad students: *Path Integrals in Quantum Physics* R. Rosenfelder https:// arxiv.org/abs/1209.1315 <https://t.co/RkqnKUzB6k?amp=1> "lectures intended for graduate students who want to acquire a working knowledge of path integral methods in a heuristic, non-mathematical way for application in many diverse problems in quantum physics" @philipthrift -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/90810a81-ffbc-4614-ab2f-e4e58a5e2213%40googlegroups.com.
