ps3 Posted December 4, 2008 Share Posted December 4, 2008 In the early 90's a Professor proposed a theory for a "quantum Time machine" http://www.npl.washington.edu/AV/altvw45.html Link to comment Share on other sites More sharing options...
Klaynos Posted December 4, 2008 Share Posted December 4, 2008 The paper that referrs to has several citations from other papers, these (as well as the original) are probably worth reading for a better understanding. http://scholar.google.com/scholar?hl=en&lr=&cites=17527387654273865876 Link to comment Share on other sites More sharing options...
ps3 Posted December 5, 2008 Author Share Posted December 5, 2008 (edited) ok,i read it,so his "time machine" won't work? also do quantum particle's travel back in time? Edited December 5, 2008 by ps3 Link to comment Share on other sites More sharing options...
AlphaNumeric Posted December 5, 2008 Share Posted December 5, 2008 Told you this would happen Link to comment Share on other sites More sharing options...
ps3 Posted December 5, 2008 Author Share Posted December 5, 2008 Told you this would happen what are talking about?? this is different. Link to comment Share on other sites More sharing options...
swansont Posted December 5, 2008 Share Posted December 5, 2008 what are talking about?? this is different. No, "do quantum particle's travel back in time" is something you've asked before, and has been addressed. If you want to discuss it further, you need to phrase a question which incorporates the information you have been given. Merely restating the question is insufficient and at some point becomes trolling. Link to comment Share on other sites More sharing options...
ps3 Posted December 5, 2008 Author Share Posted December 5, 2008 here is where i got my info. http://www.colorado.edu/philosophy/vstenger/Briefs/QuantumTimeTravel.html http://www.colorado.edu/philosophy/vstenger/void.html Link to comment Share on other sites More sharing options...
ps3 Posted December 8, 2008 Author Share Posted December 8, 2008 have these two links where the writer says that quantum particle's do in fact travel back in time,is this true? or i misread them? http://www.colorado.edu/philosophy/vstenger/Briefs/QuantumTimeTravel.html http://www.colorado.edu/philosophy/vstenger/void.html Link to comment Share on other sites More sharing options...
swansont Posted December 8, 2008 Share Posted December 8, 2008 have these two links where the writer says that quantum particle's do in fact travel back in time,is this true? or i misread them? http://www.colorado.edu/philosophy/vstenger/Briefs/QuantumTimeTravel.html http://www.colorado.edu/philosophy/vstenger/void.html You can model them that way — they exhibit that behavior. I refer you to the link I gave in post #6. It'll tell you the same thing, because you're asking the same question. How about asking a different (hopefully better) question? Link to comment Share on other sites More sharing options...
ps3 Posted December 9, 2008 Author Share Posted December 9, 2008 You can model them that way — they exhibit that behavior. I refer you to the link I gave in post #6. It'll tell you the same thing, because you're asking the same question. How about asking a different (hopefully better) question? did you read the links i provided? what is it that the writer is talking about? because if these particles are able to do this,they would violate laws and causality and see weird paradoxes. Link to comment Share on other sites More sharing options...
iNow Posted December 9, 2008 Share Posted December 9, 2008 Nothing goes back in time. It's just a way of looking at the math, a model. It is not some experimental result. Link to comment Share on other sites More sharing options...
ps3 Posted December 10, 2008 Author Share Posted December 10, 2008 Nothing goes back in time. It's just a way of looking at the math, a model. It is not some experimental result. what is that stenger is talking about then? Link to comment Share on other sites More sharing options...
iNow Posted December 10, 2008 Share Posted December 10, 2008 Math. Ways of looking at things. A model. Link to comment Share on other sites More sharing options...
ps3 Posted December 10, 2008 Author Share Posted December 10, 2008 have you heard of his model? Link to comment Share on other sites More sharing options...
iNow Posted December 10, 2008 Share Posted December 10, 2008 Well, I did reply to your post about it, didn't I? Link to comment Share on other sites More sharing options...
ps3 Posted December 10, 2008 Author Share Posted December 10, 2008 how come he says they are not paradoxical? Link to comment Share on other sites More sharing options...
iNow Posted December 10, 2008 Share Posted December 10, 2008 Probably because what he's talking about is simply a result of the math... of our descriptions... of our models of the universe... not an actual phenomenon being observed or measured. Link to comment Share on other sites More sharing options...
ps3 Posted December 10, 2008 Author Share Posted December 10, 2008 so not something actully physical or really happening in the universe? Link to comment Share on other sites More sharing options...
iNow Posted December 10, 2008 Share Posted December 10, 2008 Not that we've observed or measured, no. AFAIK, it's just the math right now. Just a model. Once we've seen it happen or have empirical evidence confirming it, then we can start worrying about potential paradoxes and causality issues. But, for now, it's just a result of the math. Link to comment Share on other sites More sharing options...
ps3 Posted December 10, 2008 Author Share Posted December 10, 2008 anything going back in time would be paradoxical right? Link to comment Share on other sites More sharing options...
iNow Posted December 10, 2008 Share Posted December 10, 2008 anything going back in time would be paradoxical right? I don't know much about metaphysics. You posted in the physics forum, so I thought that's what we were discussing. Perhaps you should open a thread in the Speculations or General Discussion forum which asks that question. Link to comment Share on other sites More sharing options...
swansont Posted December 10, 2008 Share Posted December 10, 2008 anything going back in time would be paradoxical right? Not in situations where you have time-reversal symmetry. As is the case with individual particles on the nuclear level. Link to comment Share on other sites More sharing options...
ps3 Posted December 11, 2008 Author Share Posted December 11, 2008 i saw a video on youtube where a guy is trying to build a time machine. http://en.wikipedia.org/wiki/Ronald_Mallett swansont have you read the two links i provided? Link to comment Share on other sites More sharing options...
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