On Sunday, April 26, 2020 at 1:04:45 PM UTC-6, John Clark wrote: > > On Sun, Apr 26, 2020 at 12:24 PM Alan Grayson <[email protected] > <javascript:>> wrote: > > *> As I understand the UP, it's a statistical statement * > > > No. It says the more exactly you specify the position of a particle the > less exactly you can specify the velocity of the particle; or stated in a > alternativ form, the shorter the time duration the more energy a particle > (or even empty space) can have without detecting any violation of the law > of conservation of energy. >
Then you don't understand the meaning of deltaP and deltaX in the statement that the product must be > or = to hbar/2. Trust me; this isn't a debatable point. AG > > *> The UP follows from the postulates of QM. So if one assume these >> postulates, there is indeed a proof of the UP.* > > > I repeat, this is physics not mathematics, if an experiment violates > somebody's postulates then that's just too bad for the postulates because > experiment and observation is the ultimate authority in science. > QM is based on specific postulates, and the UP is NOT one of them! Then, using those postulates you can actually derive, or prove, the UP. Yes, experiment and observation is the ultimate authority for any physical theory, and in this case, they validate the postulates as useful in predictions. AG > And, given that it can make predictions to 12 significant digits, > experiment and observation tells us that virtual particles exist as > unequivocally as science can tell us anything. > You need to show that the correctness of some prediction establishes the existence of virtual particles. Since virtual particles don't obey the energy equation of SR, aka "off shell", their existence as physical particles is on very shaky ground. You need to go back to the UP, derive its energy form, and make sure you really know what that form is telling us in a statistical sense. After all, the concept of "uncertainty" has a well-defined statistical meaning. AG > > John K Clark > >> >> -- 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/62eae301-c5f4-464b-b2de-8506e3b7bf99%40googlegroups.com.
