How are units of measure defined in Quantum Mechanics?

  • #1
Stephen Tashi
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In classical physics, the definition of a unit of measure involves a deterministic process (e.g. "the amount of force necessary to give a kilogram mass the acceleration of 1 meter per second square"). How are such units defined in Quantum Mechanics?

( Do we replace references to quantities with references to their expected values? )
 

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  • #2
Vanadium 50
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Units are defined the same. The universe is fundamentally quantum, but that doesn't stop us from defining (e.g.) the kilogram.
 

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