Compute $$U(a)\ \vec{r} \ U^\dagger(a) $$ where $$U(a) = \exp(-i\vec{a}\cdot \hat{\vec{p}})$$ where $\vec{a}$ are numbers.
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4727:Diamond Point
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Compute $$U(a)\ \vec{r} \ U^\dagger(a) $$ where $$U(a) = \exp(-i\vec{a}\cdot \hat{\vec{p}})$$ where $\vec{a}$ are numbers.
4727:Diamond Point