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Blog post: swansont: Wrong Heisenberg is Wrong!

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Another article on the Heisenberg experiment I linked to earlier

 

Common Interpretation of Heisenberg's Uncertainty Principle Is Proved False

 

However, I think that the author is not quite getting it

 

The uncertainty principle limits what we can know about a quantum system, and that fuzziness is not entirely caused by the act of measurement.

 

No! The Heisenberg uncertainty is not at all caused by the measurement! That's a separate phenomenon that can add to the total uncertainty you have. The thing is, the Heisenberg Uncertainty Principle doesn't require uncertainty of any one parameter, it limits the accuracy of simultaneous measurements of certain parameters.

 

The critique of incorrectly teaching the observer effect as the HUP in intro classes is quite correct, though.Read and comment on the full post

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