On Thursday, February 28, 2019 at 11:13:07 AM UTC-6, Bruno Marchal wrote: > > > On 28 Feb 2019, at 02:01, [email protected] <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 [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.
