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Thread: Heisenberg's Uncertainty Principle Wrong?

  1. #1 Heisenberg's Uncertainty Principle Wrong? 
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    Looks like they may have found a way to show that Heisenberg's Uncertainty Principle may be wrong. The Uncertainty Principle of Quantum Mechanics is intuitive to a certain extent and is only one of a few primary foundation principles of Quantum Theory. Maybe its wording and formulations may need to be changed in the future.

    Other principles of QM are the Either Or, but not both at once, wave particle duality Principle of EM radiation, the Indeterminacy of particle state before observation, relating to Shroedingers Cat and quantum Entanglement. The Lack of Causality Principle: that events can happen by pure chance, their probability determined by statistics.

    Will this finding hold up under scrutiny? If so one might expect there will eventually be other tests invented, like the one below, trying to find fault with all the principles of quantum mechanics.

    http://www.scienceda...21004121638.htm


    Last edited by forrest noble; October 4th, 2012 at 04:08 PM.
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    Brassica oleracea Strange's Avatar
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    I didn't think they were challenging HUP; just greatly reducing the effects of the measurement on the system. But it is a long time since I read about it ... I'll take another look.

    Another group has used the same sort of weak measurement technique to measure a the state of a system without destroing the superposition: Quantum measurements leave Schrödinger's cat alive - physics-math - 03 October 2012 - New Scientist


    ei incumbit probatio qui dicit, non qui negat
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    Brassica oleracea Strange's Avatar
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    OK. Here is the key sentence in the article:
    Heisenberg and other scientists later generalized the equations to capture an intrinsic uncertainty in the properties of quantum systems, regardless of measurements, but the uncertainty principle is sometimes still loosely applied to Heisenberg's original measurement-disturbance relationship.
    Yes, "loosely applied" as in this article. At least they admit it is shoddy reporting.
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    ei incumbit probatio qui dicit, non qui negat
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    The heisenberg uncertainty rule states that "At a particular given instant of time either the position or velocity of a particle can be determined accurately ." According to what hte toronto researcher team has done is that it has taken an average and has been unable to capture evidence in one pic shot which means that detecting the position or velocity of a particle cannot be determined AT ONE TIME. Emphasis on AT O's whytNE TIME as what the researchers have done is to take 1000's of photos and gather an average data.... That's why acc. to me heisenbergs uncertainty principle still holds good.. Any other views would be welcome.......
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    Malignant Pimple shlunka's Avatar
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    I'm not so certain about the uncertainty of Heisenberg's Uncertainty principle.
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  7. #6  
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    Quote Originally Posted by shlunka View Post
    I'm not so certain about the uncertainty of Heisenberg's Uncertainty principle.
    Yes, present thinking is that the uncertainty of the Uncertainty Principle may be uncertain, but it is generally thought to be wrong -- and that QM rules concerning uncertainty.
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