Results 1 to 5 of 5

Thread: Wormhole entanglement solves black hole paradox (Norvey's portal)

  1. #1
    Join Date
    May 2013
    Location
    Phuket, Thailand
    Posts
    239

    Wormhole entanglement solves black hole paradox (Norvey's portal)

    June 2013 by Jacob Aron

    29224201thumb_300.jpg

    WORMHOLES – tunnels through space-time that connect black holes – may be a consequence of the bizarre quantum property called entanglement. The redefinition would resolve a pressing paradox that you might be burned instead of crushed, should you fall into a black hole.

    Knowing which hazard sign to erect outside a black hole isn't exactly an everyday problem. For theoretical physicists, though, it reveals an inconsistency between quantum mechanics and general relativity. Solving this conundrum might lead to the sought-after quantum theory of gravity.

    Relativity says if you fall into a black hole, you would die via "spaghettification" – a gradual stretching by ever-more intense gravitational forces. But last year, when Joseph Polchinski at the University of California in Santa Barbara and colleagues explored the quantum implications of black holes, they hit a problem. Black holes emit photons via something called Hawking radiation, and these are "entangled" with the interior of the black hole and also with each other. This breaks a quantum rule that particles can't be entangled with two things at once.

    To preserve quantum monogamy, Polchinski suggested last year that the black hole-photon entanglement breaks down. That causes a wall of energy at the black hole's event horizon that wrecks relativity because anyone falling in would burn up rather turn to spaghetti. Welcome to the black hole firewall paradox.

    Possible solutions abound but now two physics heavyweights, Juan Maldacena of the Institute for Advance Study in Princeton, and Leonard Susskind of Stanford University, California, have come up with the most audacious one yet: a new kind of wormhole that means the entanglement needn't be broken in the first place.

    First, the pair showed that these space-time tunnels, usually described by the maths of general relativity, also emerge from quantum theory, if two black holes are entangled. It's as if the wormhole is the physical manifestation of entanglement.

    The pair then extended this idea to a single black hole and its Hawking radiation, resulting in a new kind of wormhole (see diagram). Crucially, they suggest that this wormhole, which links a black hole and its Hawking radiation, may not be a problem for quantum monogamy in the way that normal entanglement is. As a result, the firewall needn't appear, preserving relativity (arxiv.org/abs/1306.0533).

    Patrick Hayden of McGill University in Montreal, Canada, finds the idea of wormholes from entangled black hole pairs convincing, but says more work is needed for the case of the black hole and a photon. Polchinski, meanwhile, is cautiously optimistic: "It certainly injects new ideas. But there is a lot that still needs to be filled in."

    There is still room for firewalls in the new wormhole definition. Maldacena and Susskind also outline how an observer outside the black hole could manipulate the Hawking radiation, creating a shock wave that travels down the wormhole and appears as a firewall. This may not screw up relativity because the firewall is optional, not intrinsic to the black hole. Maldacena hopes mulling these options will teach us about quantum gravity.
    "Truly I was born to be an example of misfortune, and a target at which the arrows of adversary are aimed"

  2. #2
    Join Date
    Sep 2009
    Posts
    679
    Quote Originally Posted by Hdreams View Post
    June 2013 by Jacob Aron

    29224201thumb_300.jpg

    WORMHOLES – tunnels through space-time that connect black holes – may be a consequence of the bizarre quantum property called entanglement. The redefinition would resolve a pressing paradox that you might be burned instead of crushed, should you fall into a black hole.

    Knowing which hazard sign to erect outside a black hole isn't exactly an everyday problem. For theoretical physicists, though, it reveals an inconsistency between quantum mechanics and general relativity. Solving this conundrum might lead to the sought-after quantum theory of gravity.

    Relativity says if you fall into a black hole, you would die via "spaghettification" – a gradual stretching by ever-more intense gravitational forces. But last year, when Joseph Polchinski at the University of California in Santa Barbara and colleagues explored the quantum implications of black holes, they hit a problem. Black holes emit photons via something called Hawking radiation, and these are "entangled" with the interior of the black hole and also with each other. This breaks a quantum rule that particles can't be entangled with two things at once.

    To preserve quantum monogamy, Polchinski suggested last year that the black hole-photon entanglement breaks down. That causes a wall of energy at the black hole's event horizon that wrecks relativity because anyone falling in would burn up rather turn to spaghetti. Welcome to the black hole firewall paradox.

    Possible solutions abound but now two physics heavyweights, Juan Maldacena of the Institute for Advance Study in Princeton, and Leonard Susskind of Stanford University, California, have come up with the most audacious one yet: a new kind of wormhole that means the entanglement needn't be broken in the first place.

    First, the pair showed that these space-time tunnels, usually described by the maths of general relativity, also emerge from quantum theory, if two black holes are entangled. It's as if the wormhole is the physical manifestation of entanglement.

    The pair then extended this idea to a single black hole and its Hawking radiation, resulting in a new kind of wormhole (see diagram). Crucially, they suggest that this wormhole, which links a black hole and its Hawking radiation, may not be a problem for quantum monogamy in the way that normal entanglement is. As a result, the firewall needn't appear, preserving relativity (arxiv.org/abs/1306.0533).

    Patrick Hayden of McGill University in Montreal, Canada, finds the idea of wormholes from entangled black hole pairs convincing, but says more work is needed for the case of the black hole and a photon. Polchinski, meanwhile, is cautiously optimistic: "It certainly injects new ideas. But there is a lot that still needs to be filled in."

    There is still room for firewalls in the new wormhole definition. Maldacena and Susskind also outline how an observer outside the black hole could manipulate the Hawking radiation, creating a shock wave that travels down the wormhole and appears as a firewall. This may not screw up relativity because the firewall is optional, not intrinsic to the black hole. Maldacena hopes mulling these options will teach us about quantum gravity.
    I get the accumulation of energy at the event horizon (I think). What Im having trouble understanding is why regular matter that is ejected must be entangled with neighbor regular matter and why this wall of energy only occurs if this is the case. Anyone have an answer to this?

  3. #3
    Join Date
    May 2013
    Location
    Phuket, Thailand
    Posts
    239
    Its postulated that the entanglement of the photons falling in is the source of the Hawking radiation. Obviously their are still holes in the understanding of Entanglement, let alone Hawking radiation but theoretically entangling the photons would allow the photons to exist in two states at the same time. Upon reaching the firewall “decoherence” of the photons from the black hole would enable the energy release but no-one has any idea as yet if this energy would be enough to be the source of Hawking radiation or perhaps just a part of it.

    This example and the firewall hypothesis may be of just one type of black hole leaving room for others not possessing these attributes.

    As to the why, im not sure we'll know till we have a quantum theory of gravity.
    "Truly I was born to be an example of misfortune, and a target at which the arrows of adversary are aimed"

  4. #4
    Join Date
    Sep 2012
    Posts
    100
    Quote Originally Posted by Hdreams View Post
    June 2013 by Jacob Aron.

    "wormholes tunnels through space-time that connect black holes – may be a consequence of the bizarre quantum property called entanglement. The redefinition would resolve a pressing paradox that you might be burned instead of crushed, should you fall into a black hole. Knowing which hazard sign to erect outside a black hole isn't exactly an everyday problem. For theoretical physicists, though, it reveals an inconsistency between quantum mechanics and general relativity. Solving this conundrum might lead to the sought-after quantum theory of gravity.

    Relativity says if you fall into a black hole, you would die via "spaghettification" – a gradual stretching by ever-more intense gravitational forces. But last year, when Joseph Polchinski at the University of California in Santa Barbara and colleagues explored the quantum implications of black holes, they hit a problem. Black holes emit photons via something called Hawking radiation, and these are "entangled" with the interior of the black hole and also with each other. This breaks a quantum rule that particles can't be entangled with two things at once."
    Spaghettifaction? Is that like converting to Catholicism? A person could do a hell of lot worse.

    But the worm? I thought "bird" was the word?
    [

    "for their worm shall not die, neither shall their fire be quenched; and they shall be an abhorring unto all flesh."
    Isaiah 66:24
    I like AZ0 I find him amusing.[
    Quote Originally Posted by Hdreams View Post
    About as amusing as a moth round a lightbulb...
    For the moth shall eat them up like a garment, and the worm shall eat them like wool: Isaiah 51:8

  5. #5
    Join Date
    May 2013
    Location
    Phuket, Thailand
    Posts
    239
    Quote Originally Posted by Databed View Post
    I get the accumulation of energy at the event horizon (I think). What Im having trouble understanding is why regular matter that is ejected must be entangled with neighbor regular matter and why this wall of energy only occurs if this is the case. Anyone have an answer to this?
    You might try the Origins project UCA, ill get the email address and message it to you... They reply to questions on Astro/particle Physics, i wont post it as more than likely they would get reams of emails from AZ0 and EZ with randoms bible quotes....
    "Truly I was born to be an example of misfortune, and a target at which the arrows of adversary are aimed"

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •