atom and its reaction while travelling in a magnetic field

by radioactive8
Tags: atom, field, magnetic, reaction, travelling
radioactive8 is offline
Sep14-13, 06:44 PM
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I was reading a book about quantum mechanics and in some point it used as an example the reaction of the atom while its travelling through a magnetic field . So the author described an atom as a magnetic arrow ( which isnt complety right but he did that so he can reveal the truth afterwards and so we readers end up in a mathetical dead end in an experiment using a stern-gerlach analyser .. so he said That if we have a dissimilar magnetic field for example which its trend going up he said that according to the trend of the atom's arrow it will even travel up by μβ or down by μβ . So hear is my question : how can it have the same declination ?
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DrClaude is offline
Sep16-13, 06:45 AM
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Quote Quote by radioactive8 View Post
So hear is my question : how can it have the same declination ?
By declination I imagine you mean the angle of the trajectory after the magnetic field with respect to the original direction of propagation. In that case, it is set by the strength of the magnetic field and the magnetic moment of the atom, which I imagine is here a hyrogen atom, which can take only two discrete values which are exactly opposite. This is the "quantum" in quantum mechanics: the magnetic moment is quantized and can only take a discrete set of values.
jtbell is offline
Sep16-13, 07:06 AM
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More precisely, the magnitude of the magnetic moment is fixed, but its orientation can take on a discrete set of values (two in this case).

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