- #1

WWCY

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- TL;DR Summary
- Unitary evolution and "timekeeping"

Suppose the unitary operator ##e^{-\frac{i}{\hbar}\hat{H}t}## acts on ##|\psi (0) \rangle##, does it make sense for one to think of the time-evolved state as some sort of time-keeping device? If not, why? If so, is such a notion useful?

Thanks in advance!

Thanks in advance!