On Fri, Jun 22, 2018 at 5:13 PM, <[email protected]> wrote: > > > On Friday, June 22, 2018 at 10:13:37 AM UTC, Lawrence Crowell wrote: >> >> On Thursday, June 21, 2018 at 6:48:53 PM UTC-5, [email protected] >> wrote: >>> >>> >>> >>> On Thursday, June 21, 2018 at 11:18:25 PM UTC, Lawrence Crowell wrote: >>>> >>>> The emergent nuclear interaction occurs on a time scale of >>>> 10^{-22}seconds. The superposition of a decayed and nondecayed nucleus >>>> occurs in that time before decoherence. >>>> >>> >>> Is that calculated / postulated if the radioactive source interacts with >>> its environment? Can't it be isolated for a longer duration? If so, what >>> does that imply about being in the pure states mentioned above? AG >>> >> >> Quantum physics experiments on nonlocality are done usually with optical >> and IR energy photons. The reason is that techniques exist for making these >> sort of measurements and materials are such that one can pass photons >> through beam splitters or hold photons in entanglements in mirrored >> cavities and the rest. At higher energy up into the X-ray domain such >> physics becomes very difficult. At intermediate energy where you have >> nuclear physics of nucleons and mesons and further at higher energy of >> elementary particles things become impossible. This is why in QFT there are >> procedures for constructing operators that have nontrivial commutations on >> and in the light cone so nonlocal physics does not intrude into >> phenomenology. Such physics is relevant on a tiny scale compared to the >> geometry of your detectors. >> >> LC >> > > *I've been struggling lately with how to interpret a superposition of > states when it is ostensibly unintelligible, e.g., a cat alive and dead > simultaneously, or a radioactive source decayed and undecayed > simultaneously. If we go back to the vector space consisting of those > "little pointing things", it follows that any vector which is a sum of > other vectors, simultaneously shares the properties of the components in > its sum. This is simple and obvious. I therefore surmise that since a > Hilbert space is a linear vector space, this interpretation took hold as a > natural interpretation of superpositions in quantum mechanics, and led to > Schroedinger's cat paradox. I don't accept the explanation of decoherence > theory, that we never see these unintelligible superpositions because of > virtually instantaneous entanglements with the environment. Decoherence > doesn't explain why certain bases are stable; others not, even though, > apriori, all bases in a linear vector space are equivalent. These > considerations lead me to the conclusion that a quantum superposition of > states is just a calculational tool, and when the superposition consists of > orthogonal component states, it allows us to calculate the probabilities of > the measured system transitioning to the state of any component. In this > interpretation, essentially the CI, there remains the unsolved problem of > providing a mechanism for the transition from the SWE, to the collapse to > one of the eigenfunctions when the the measurement occurs. I prefer to > leave that as an unsolved problem, than accept the extravagance of the MWI, > or decoherence theory, which IMO doesn't explain the paradoxes referred to > above, but rather executes what amounts to a punt, claiming the paradoxes > exist for short times so can be viewed as nonexistent, or solved. AG. ]* >
> I've been watching this lecture series on that same question, and found it to be good: http://www.quiprocone.org/Protected/DD_lectures.htm Jason -- 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.
