The Black Hole Information Paradox in the Age of Holographic Entanglement Entropy - Netta Engelhardt

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  • Опубликовано: 2 ноя 2024

Комментарии • 13

  • @sebastianclarke2441
    @sebastianclarke2441 3 года назад +5

    All this new info about the gate curve and entanglement entropy is really quite fascinating stuff. After hearing quite a lot about it lately, I was hoping to flesh out my understanding of what entropy entanglement is and found this video. I now remember listening to your excellent talk with Sean Carroll a few months ago. I've subbed to the channel and look forward to more developments from this beautifully stimulating idea!

  • @bobdorsett6572
    @bobdorsett6572 4 года назад +8

    This presentation helped a lot to clarify the logic behind these exciting recent developments. Thank you!

  • @skeltek7487
    @skeltek7487 4 года назад +4

    A similar problem with vanishing/delocalizing information occurs with phenomenological spacetime itself, when one transforms the formula for the expansion of the universe from static matter sizes & expanding space to a static space and shrinking matter model (phenomenologically eqivalent, since it is a simple transformation of the commonly used formulas).
    Before a photon can close the distance and reach an absorber at a certain distance, the absorber would had experienced an infinite amount of Eigentime(implicit consequence of constant c and shrunk distances manifesting as time acceleration) and shrunk into nothingness. From the macroscopical standpoint, the absorber would simply be gone before arrival of the photon, and the observer would have completely vanished by then. From the observers standpoint, the photon would have redshifted infinitely by then.
    From that viewpoint, the problem is pretty much the same for the cosmological event horizon. Why do people have a problem with the loss of information in evaporating black holes, but not with the cosmological event horizon? Information is 'lost' there too, when viewed 'from the outside'

  • @IzzatZubir
    @IzzatZubir 3 года назад +1

    Thanks Netta Engelhardt! The talk was well delivered!

  • @xaverstenliz8466
    @xaverstenliz8466 3 года назад +3

    good job...don't worry why there are not much questions, is a hard topic to swallow. CFT, ADS, QM and ART all hard, but this topic is all possibilities of hard in a mixed State, to compute at once with classical computer... i love the idea of information complementarity. thx

  • @NotAI69420
    @NotAI69420 2 года назад

    What information is stored at the event horizon and how could we read that stored data theoretically? Is that the answer of why?

  • @KaliFissure
    @KaliFissure 2 года назад

    Neutron decay cosmology.
    A physical process solution to gimme tuning and black hole paradoxes.
    The topology explains electron half spin and baryon asymmetry.
    The neurons which contact event horizon become the vacuum energy for a single Planck second then re emerge, local Hamiltonian intact, in deep voids of space. Moving from highest energy density conditions to lowest. Event horizons acting as one way energy pressure release valves venting to lowest energy points of space in deep voids.
    There the neurons decay. The decay process includes a volume increase, energy density decrease, of 10^54 times. Expansion. Dark energy. Lambda. The decay product, amorphous atomic hydrogen, having no stable orbital electron can't emit or absorb photons. Dark matter or some of it. In time the hydrogen stabilizers and flows usual evolution pathway until in distant future it is once again at edge of event horizon.
    The universe is steady state locally evolving. Time is a compact dimension on single Planck second in size. This is our manifold, a minimal single sided closed surface.
    Sin(cos(u/2)cos(v/2),cos(u/2)sin(v/2),sin(u)/2) 0

  • @tokajileo5928
    @tokajileo5928 3 года назад +2

    if black holes evaporate in time and if time slows down near the event horizon of the black hole, considering an infalling body, is it not the journey time of the infalling body to reach the event horizont equal the evaporation time of the black hole considering the time dilation ? therefore nothing can go pass the event horizont because by the time anything reaches it the black hole has already evaporated.

    • @sebastianclarke2441
      @sebastianclarke2441 3 года назад +1

      Time may come to a stand still but space/time does not, it continues through the event horizon carrying matter in with it

    • @access5870
      @access5870 2 года назад

      Time for the relative observer entering the black hole has frozen but the objective space in which that observer has occupied continues to flow into the black hole and can be observed as such from an external observer.

  • @riskingeuphoria
    @riskingeuphoria 3 года назад +1

    im nnot a physicist but....
    cant the space time curvature just be governed by s thing that specifically initially in quantum level only effects the time dilation?
    i mean this could easily be implied through the pilot wave idea, if we assume that the waves work according to the same logic of sound waves in water.
    if these waves through im not sure whatever they exist in exist, then cannot there be a density and temperature of these things? So they would just slow down and change the waves that could cause orbits and such like a meandering river or detraction or slowing your cars left wheals.
    i am not a physicist atall and so probably don't understand it, but as i look further and further it just seems like this is the kinda occums razor obvious idea for quantum gravity?
    With a black hole that would be that the event horizon is where the waves are all slowed to a stand still in that one direction so can only move into it. as in all the quarks and such in the boxes that make up our atoms are then only going in one direction at their speed of light meaning that there is no escape and only an event horizon is visible.