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String Theory and EPR Entanglement
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on 2004-08-06 22:04:58 |
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if you like string theory, and are intrigued with the recent "teleportation" experiments conducted using EPR entanglement, you will be interested to read this physicsforum.com thread. the idea presented is that the phenomena of entanglement is rightfully explained as a correlation between two particles not in our typical 3-dimensional space, but in those other 6 (or 7) dimensions that are said to exist in accordance with string theory. it would then make sense that no matter how far they are separated in space, these particles can maintain some sort of relationship with one another. when i first heard about Einstein's so called "spooky effect" i was baffled, and then it occurred to me: just because two objects are separated by space, doesnt mean that they are separated in other dimensions. 
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Re: String Theory and EPR Entanglement
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on 2004-08-09 21:39:18 |
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Veeerrryyy interesting. Do you have any links with some of the mathmatics behind it? Works great from a conseptual standpoint, but Ive never actually seen the mathmatics that string theory is supposably born from. Now all we need is a teleporter...
--theKiyote
"Everything you ever loved will be altered or destroyed" |
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Re: String Theory and EPR Entanglement
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I've always been kind of interested in this kind of thing. I'm not that great at physics though, so I don't entirely understand a lot of it. From what I did understand, isn't this basically the same thing that was discussed and used so thoroughly in the Ender's series (primarily the beginning and the end, especially the end where they actually used that to teleport.) Is there any simpler explanation for some of this? For starters, I am wondering about this talk about another 6 dimensions. What are these dimensions? I really only knew about the four that we normally think of. |
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Re: String Theory and EPR Entanglement
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well, basically, the experiments proved that this entanglement happens. the string theory explains how the entanglement can happen. one of the requirements is that there are 5-7 additional dimensions that particles can be connected through. also i read a text once where scientists who analyze traces of Big Bang claim to have found a type of radiation with a set of eleven frequencies, which could indicate the amount of dimensions born with the universe. but apparently the internet sucks for finding data on this subject.. |
Aramis|
Re: String Theory and EPR Entanglement
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| I am currently researching string theory for a physics report, so this thread has been pretty interesting. I just wanted to add my two-cents though...that being that I really like the possibilities of string theory and the chance that it may prove to be a unified field theory and pull everything together. Also, I read an article that said that in 5 to 6 years when the Large Hadron Collider in Geneva is completed, scientists may be able to indirectly test string theory (particularly its relationship to dark matter via gravitons). The article also said scientists may be able to make mini black holes. All I can say is...cool. |
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Re: String Theory and EPR Entanglement
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on 2004-11-21 12:48:29 |
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wow, sounds interesting! source please?
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Re: String Theory and EPR Entanglement
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| In response to your question, the source for my info was the New York Times. It was an article from April 4, 2000 called "Physicists Finally Find a Way to Test Superstring Theory". I pulled it off the Internet on a website called galenet. Unfortunately, it's a subscription website that requires users to pay (it's free for me through my school). Maybe the New York Times website also has a copy? I'm sorry if I can't be of any more help ^_^; but in any case, there are several good online websites that have string theory info, I guess b/c it's getting so popular. :) |
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Re: String Theory and EPR Entanglement
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I don't see how extra dimensions in string theories can resolve this. Actually, I'm not sure what you're trying to resolve, because locality (independence of systems that are spatially separated) was held axiomatically to be true by EPR, but is mostly believed today not to hold. And that's mainly because of what the quantum theory tells us. But even if you insist on locality, what do extra dimensions in string theories do? Even if two systems are "close" in some invisible dimension, there's still a separation in the normal 3 dimensions. (Maybe you can construct some kind of bizarre topology where 2 points are close to each other, while being far apart in some dimension, but it seems to me that the "closeness" would depend on position or other factors that theoretically and experimentally appear to be irrelevant in the EPR entanglement.) Btw, the LHC is probably going to be ready mid-2007. But to me, the most interesting part of it is the search for the higgs boson. |
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Re: String Theory and EPR Entanglement
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on 2004-11-25 00:04:34 |
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where can i read about a "higgs boson"?
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Re: String Theory and EPR Entanglement
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| The Higgs boson is a way to explain how particles get their mass. The weak interaction bosons are massive (unlike the photon for electromagnetic interactions), a fact that violates the electroweak gauge invariance. So, the Higgs mechanism can solve this problem (the Nobel prize was given for this a few years ago, so you can tell it's quite important). You can read about the Higgs mechanism in chapter 20 of Peskin and Schroeder Intro to QFT, or look up something else on gauge theories and spontaneous symmetry breaking. |
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Re: String Theory and EPR Entanglement
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on 2004-11-25 15:13:17 |
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wow, neat stuff. thanks for the help.
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Re: String Theory and EPR Entanglement
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We had a lesson on EPR in our elective(advanced physics class) ... that teleportation can happen on the quantum level through the correlation of quanta. If a quanta is strongly correlated w/ another, and then they're both separated, and joined with other quanta, the quanta that they're joined with then becomes strongly correlated with both its partner, and the quanta separated from its partner. So if you imagine it in terms, the newly paired quanta is a copy/clone of the other separated quanta, thus - in this case, teleportation exists. EPR is Einstein-Podolsky-Rosen/berg correlation, right? I also know that a Jap, Mishio Kaku, is a known person in the string theory idea... going to watch him on HardTalk BBC later... w00t! You people are amazing. I don't even know those LHC stuff, but I somewhat know of the massiveness of weak particles. It's like bosons are massive... I did have a high score in Physics, but I've been too lazy to follow up on the greatness of String Theory... |