On Tuesday, December 3, 2019 at 8:32:43 AM UTC-6, Philip Thrift wrote: > > > > On Tuesday, December 3, 2019 at 8:02:29 AM UTC-6, Lawrence Crowell wrote: >> >> For symmetry protected quantum states, which are local entanglements, >> they are local because the symmetry or group action is generally covariant. >> This covariant property enforces what we think of as space and time. >> >> LC >> >> >>>> > It's reasonable that space and time precedes symmetry. We get symmetries > from spacial measurements. > > @philipthrift >
An observer witnessing a black hole emit Hawking radiation discovers that while quantum states are approaching the event horizon they also appear as hawking radiation removed from the black hole. The entire notion of quantum states and events as localized in regions of space is not entirely applicable. What symmetries exist with these quantum states or field are then not tied to local geometry. Local geometry is something that emerges instead from the symmetries of quantum fields. This is because they are quantum gravitational. The quantum fields approaching the event horizon, or on the stretched horizon are pure Planck oscillator modes. Two gravitons that scatter either do so as a 4 point interaction, similar to a φ^4 field theory, or they merge to form a black hole in a 3-point interaction so the quantum BH decays via a 3-point interaction into gravitons. There is no procedure for determining which of these amplitudes occurs, and in fact they both do. QM is odd that way. As a result there is no fundamental meaning to their being some point where a gauge action occurs. As Arkani Hamed puts it, "Space must die." LC -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/9887bb16-4158-490b-8229-fcf43bb62d05%40googlegroups.com.
