Energy-time uncertainty principle

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  • #1
beda
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I feel there are several non-eqivalent interpretations of energy-tme uncertainty principle.It is right?And if so,what are those corrects?In particular one that sees it (the uncertainty energy-time ) as a chance of violate conservation of energy for a time sufficently small.I would be grateful if someone schow my texs or articles on this topic.Thanks.Sergio
 

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  • #3
anorlunda
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That's right. For more details see e.g.
http://lanl.arxiv.org/abs/quant-ph/0105049

Thanks for the link, that paper was interesting. I searched the paper for mention of tunneling, but none were found.

It had always been my understanding that energy-time uncertainty could be used to explain some kinds of quantum tunneling. Is that correct?
 
  • #4
Demystifier
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Thanks for the link, that paper was interesting. I searched the paper for mention of tunneling, but none were found.

It had always been my understanding that energy-time uncertainty could be used to explain some kinds of quantum tunneling. Is that correct?
I believe that energy-time uncertainty is used for explanation of tunneling only in popular books on quantum physics, not in serious scientific texts.
 
  • #5
Jilang
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In QM tunneling can it even be said that the particle spends any real time inside the barrier? You cannot find it there.
 
  • #6
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In QM tunneling can it even be said that the particle spends any real time inside the barrier? You cannot find it there.

Its an unequivocal prediction of the theory - it can be found there if you were to measure it.

Thanks
Bill
 
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