On Wednesday, December 4, 2019 at 12:08:01 PM UTC-6, Brent wrote: > > > > On 12/4/2019 2:50 AM, Lawrence Crowell wrote: > > 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. > > > Right. So how can they "approach the event horizon"? How can they move > through space when they are not even localized? > > Brent > > The fields approaching the horizon are in a nonlocal superposition with itself far removed. The catch though is this persists even after a measurement meant to localize the particle-field. In a funny way the field is both in a superposition of two configurations and equivalently the entanglement of two field amplitudes.
LC > 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 everyth...@googlegroups.com <javascript:>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/everything-list/9887bb16-4158-490b-8229-fcf43bb62d05%40googlegroups.com > > <https://groups.google.com/d/msgid/everything-list/9887bb16-4158-490b-8229-fcf43bb62d05%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > > -- 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/996d3e8a-f785-43a0-a950-353782fb4ba6%40googlegroups.com.
