Pentcho Valev
2015-08-30 11:56:12 UTC
https://royalsociety.org/events/2015/09/is-our-universe-a-hologram/
The Royal Society: "It may sound like science fiction, but a lesser known branch of string theory, holography, is stepping into the limelight with some bold ideas about our universe. Holography predicts that all the information in our 3D universe is contained in a mysterious 2D image, like a hologram. Promising not only to unite Einstein's relativity with quantum physics, holography has the potential to provide us with cleaner energy, faster computers, and novel electronics."
https://www.newscientist.com/article/dn28090-stephen-hawking-says-he-has-a-way-to-escape-from-a-black-hole/
New Scientist: "Now Hawking says this information never makes it inside the black hole in the first place. "I propose that the information is stored not in the interior of the black hole as one might expect, but on its boundary, the event horizon," he said today. The event horizon is the sphere around a black hole from inside which nothing can escape its clutches. Hawking is suggesting that the information about particles passing through is translated into a kind of hologram - a 2D description of a 3D object - that sits on the surface of the event horizon. "The idea is the super translations are a hologram of the ingoing particles," he said. "Thus they contain all the information that would otherwise be lost." So how does that help something escape from the black hole? In the 1970s Hawking introduced the concept of Hawking radiation - photons emitted by black holes due to quantum fluctuations. Originally he said that this radiation carried no information from inside the black hole, but in 2004 changed his mind and said it could be possible for information to get out. Just how that works is still a mystery, but Hawking now thinks he's cracked it. His new theory is that Hawking radiation can pick up some of the information stored on the event horizon as it is emitted, providing a way for it to get out. But don't expect to get a message from within, he said. "The information about ingoing particles is returned, but in a chaotic and useless form. This resolves the information paradox. For all practical purposes, the information is lost." (...) More details are expected later today when one of Hawking's collaborators Malcom Perry expands on the idea, and Hawking and his colleagues say they will publish a paper on the work next month, but it's clear he is gunning for the idea that black holes are inescapable. It's even possible information could get out into parallel universes, he told the audience yesterday."
Pentcho Valev
The Royal Society: "It may sound like science fiction, but a lesser known branch of string theory, holography, is stepping into the limelight with some bold ideas about our universe. Holography predicts that all the information in our 3D universe is contained in a mysterious 2D image, like a hologram. Promising not only to unite Einstein's relativity with quantum physics, holography has the potential to provide us with cleaner energy, faster computers, and novel electronics."
https://www.newscientist.com/article/dn28090-stephen-hawking-says-he-has-a-way-to-escape-from-a-black-hole/
New Scientist: "Now Hawking says this information never makes it inside the black hole in the first place. "I propose that the information is stored not in the interior of the black hole as one might expect, but on its boundary, the event horizon," he said today. The event horizon is the sphere around a black hole from inside which nothing can escape its clutches. Hawking is suggesting that the information about particles passing through is translated into a kind of hologram - a 2D description of a 3D object - that sits on the surface of the event horizon. "The idea is the super translations are a hologram of the ingoing particles," he said. "Thus they contain all the information that would otherwise be lost." So how does that help something escape from the black hole? In the 1970s Hawking introduced the concept of Hawking radiation - photons emitted by black holes due to quantum fluctuations. Originally he said that this radiation carried no information from inside the black hole, but in 2004 changed his mind and said it could be possible for information to get out. Just how that works is still a mystery, but Hawking now thinks he's cracked it. His new theory is that Hawking radiation can pick up some of the information stored on the event horizon as it is emitted, providing a way for it to get out. But don't expect to get a message from within, he said. "The information about ingoing particles is returned, but in a chaotic and useless form. This resolves the information paradox. For all practical purposes, the information is lost." (...) More details are expected later today when one of Hawking's collaborators Malcom Perry expands on the idea, and Hawking and his colleagues say they will publish a paper on the work next month, but it's clear he is gunning for the idea that black holes are inescapable. It's even possible information could get out into parallel universes, he told the audience yesterday."
Pentcho Valev