because forces are instantaneous and thats not possible
Frequently cited Hellmann–Feynman theorem treats the forces in quantum mechanics.
http://en.wikipedia.org/wiki/Hellmann%E2%80%93Feynman_theorem
I want mathematical answers.
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Please explain conceptually
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.
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Physical meaning of commutation operators are understood.
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I dont think so there is something like genius or is it
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I think it can be derived.
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