• QM spin labels. half and whole integers?

    From mitchrae3323@gmail.com@21:1/5 to All on Fri Nov 24 17:57:42 2023
    How are they about spin?
    They are categories of types of particles instead.
    They have no spin speed.

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  • From J. J. Lodder@21:1/5 to mitchr...@gmail.com on Sat Nov 25 10:45:28 2023
    mitchr...@gmail.com <mitchrae3323@gmail.com> wrote:

    How are they about spin?
    They are categories of types of particles instead.
    They have no spin speed.

    Your complete ignorance of real physics is showing again.

    Spin really is angular momentum. In its simplest form:
    If you fire a spin polarised electron beam into a taget
    your target will start to rotate.
    The law of conservation of angular momentum won't add up
    if you don't include spin as real angular momentum.

    The usual genius thought of this first.
    Since he visited Leyden regularly he told some experimentaist there
    about it, and they decided to confirm.
    It is known as the Einstein-De Haas effect.

    Originally it was about orbital angular momentum,
    but since most of ferromagnetism is from spins
    it applies to spin angular momentum as well,

    Jan

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