incompetence Posted December 18, 2014 Share Posted December 18, 2014 So I've been looking up the holographic principle for a while and I'm having trouble understanding somthing that I feel is obvious that I'm missing. I understand that a volume of space will have the same information as it's surface area, but is it the same information? What I mean is if I drop Alice into a black hole, from her view inside the black hole she will see everything 3-dimensionally. Bob, who is outside of the black hole, will see Alice's information 2-dimensionally on the event horizon. The part I'm having trouble with is are they looking at the same Alice? Is the Alice on the inside a clone of the one on the surface, or is she in a sense in both places at the same time? If you couldn't tell I'm a layperson so please keep answers simple. Thank you. Link to comment Share on other sites More sharing options...
ajb Posted December 18, 2014 Share Posted December 18, 2014 What I mean is if I drop Alice into a black hole, from her view inside the black hole she will see everything 3-dimensionally. Bob, who is outside of the black hole, will see Alice's information 2-dimensionally on the event horizon. I am not sure about this. Remember that classically black holes are characterised by the no hair theorem. That means we don't know what black holes have 'eaten'. I am not sure, and I expect no-one really is what happens quantum mechanically. Link to comment Share on other sites More sharing options...
incompetence Posted December 20, 2014 Author Share Posted December 20, 2014 Yeah, I could have worded that better. Let me try again. According to the holographic principle the surface area that surrounds a volume of space should contain the same information that the volume has. So if I have Alice inside a 3D space, that same information should be on the surface area that surrounds her. http://m.dummies.com/how-to/content/string-theory-insight-from-the-holographic-princip.html So would that mean that there are 2 Alices, or is she both on the surface and in the volume? Link to comment Share on other sites More sharing options...
Endy0816 Posted December 20, 2014 Share Posted December 20, 2014 So would that mean that there are 2 Alices, or is she both on the surface and in the volume? Maybe. Getting into the Quantum Mechanics No-cloning theorem and the related black hole Firewall hypothesis. http://en.wikipedia.org/wiki/No-cloning_theorem http://en.wikipedia.org/wiki/Firewall_%28physics%29 I suspect one way or another everything cancels out in the end via Hawking radiation. Link to comment Share on other sites More sharing options...
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