On Thursday, February 28, 2019 at 11:13:07 AM UTC-6, Bruno Marchal wrote: > > > On 28 Feb 2019, at 02:01, agrays...@gmail.com <javascript:> wrote: > > > > On Wednesday, February 13, 2019 at 9:40:32 PM UTC-7, cdemorsella wrote: >> >> Two fascinating (and very different) approaches are presented to derive >> Quantim Mechanics main practical tool (e.g. Born's rule). Wonder what some >> of the physicists on here think about this research? >> >> I find the argument that no laws is the fundamental law... and that the >> universe and its laws are emergent guided by subtle mathematical >> statistical phenomena, at the same time both alluring and annoying.... it >> is somehow unsatisfactory.... like being served a quite empty plate with >> nice garnish for dinner. >> >> One example of emergence from chaotic conditions is how traffic jams (aka >> density waves) can emerge from chaotic initial conditions, becoming self >> re-enforcing within local domains of influence... for those unlucky to be >> stuck in them. Density wave emergence is seen across scale, for example the >> spiral arms of galaxies can be explained as giant gravitational pile ups >> with some fundamentally similar parallels to say a rush hour traffic jam, >> except on vastly different scales of course and due to other different >> factors, in the galactic case the emergent effects of a vast number of >> gravitational inter-actions as stars migrate through these arms on their >> grand voyages around the galactic core. >> >> This paired with the corollary argument that any attempt to discover a >> fundamental law seems doomed to the infinite regression of then needing to >> explain what this foundation itself rests upon.... leading to the "it's >> turtles all the way down" hall of mirrors carnival house... head-banger. >> >> Perhaps, as Wheeler argued, the world is a self-synthesizing system, and >> the seeming order we observe, is emergent... a law without law. >> >> Here is the link to the article: >> >> >> >> The Born Rule Has Been Derived From Simple Physical Principles | Quanta >> Magazine >> <https://www.quantamagazine.org/the-born-rule-has-been-derived-from-simple-physical-principles-20190213/> >> The Born Rule Has Been Derived From Simple Physical Principles | Quanta >> Magazine >> >> The new work promises to give researchers a better grip on the core >> mystery of quantum mechanics. >> >> <https://www.quantamagazine.org/the-born-rule-has-been-derived-from-simple-physical-principles-20190213/> >> >> >> > >> *Is there consensus that Born's rule can be, and has been derived from >> physical principles, and/or the other postulates of QM? TIA, AG* >> > > > I would say no. Just many interesting hints though. Then with mechanism, > you need to derive the wave/matrix as well, and the symmetries, from any > universal machinery phi_i. All the rest is given by Gauge invariance and > our breaking of the symmetries. > > I am (re)reading what Weinberg says about all this, but his conclusion is > that quantum mechanics could be simply wrong, and just a symptom of a > deeper theory, which it should with Indexical Digital Mechanism. > > Bruno > > > > As for the beginning with the *Feynman postulates* (listed here):
http://muchomas.lassp.cornell.edu/8.04/Lecs/lec_FeynmanDiagrams/node3.html it seems thatsome form of the Born rule should be derivable, but I don't know. - pt -- 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 everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
