There is only one way to reduce the equations of special relativity (aka Lorentz Transformations) to the equations of Newtonian mechanics (aka Galilean Transformations).(adsbygoogle = window.adsbygoogle || []).push({});

In light of the above, why are there multiple ways to reduce quantum-mechanical equations of motion into classical equations of motion? For example, you could either take the Planck's constant to zero, or take the quantum numbers to infinity to reduce to the classical behaviour.

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# Different classical limits of quantum mechanics

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