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Thread: neutrinos as superpositions of states

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    Default neutrinos as superpositions of states



    https://aeon.co/videos/how-the-ident...es-all-at-once

    the exists in three states all at once is unfortunate hype. the state of a neutrino can be represented as a superposition of three states which can be chosen to be "flavor" states or "mass" states. the state of the neutrino (as a sum of one or the other sets of three states) evolves deterministically via a relativistic wave equation.

    the only thing that happens probabilistically is the measurement. if you use a flavor measuring apparatus the state of a neutrino gets projected onto the three states (electron-neutrino, muon-neutrino, tau-neutrino) with a probability proportional to the square amplitude of the neutrino's original state with regard to the 3 flavors. it is the act of observation that introduces the probability. same thing for a mass measurement only the mass states are used.

    how we superimpose states to represent THE STATE of an object depends purely on our measurement plans. THAT's where probabilities enter in. the original neutrino state is a single state that can be represented as a superposition depending on our choice of experiment.

    that is why Einstein was wrong to say "God plays dice with the universe" as if it means that the equations of QM are inherently random. it is the observer that plays dice when making a measurement.
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    Default Re: neutrinos as superpositions of states

    The measurement being - we know where it is but don't know where its going.
    Else- we know where its going but we don't know where it is!
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    Default Re: neutrinos as superpositions of states

    Quote Originally Posted by Testgear View Post
    The measurement being - we know where it is but don't know where its going.
    Else- we know where its going but we don't know where it is!
    But as long as we don't measure it knows where it is and where it is going just fine.
    BABOafrica likes this.
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