Post Closed as "Duplicate" by user10851, Kyle Kanos, John Rennie, ACuriousMind♦, Ryan Unger

occurred Jul 10, 2015 at 18:31

added 1 character in body; edited tags

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edited Jun 8, 2015 at 16:22

Schaum's Quantum Mechanics comes up with

exp((-i/$\hbar$)$\cdot \theta \cdot{\hat{L}} \cdot {\overrightarrow{n}}$)$$\exp((-i/\hbar)\cdot \theta \cdot{\hat{L}} \cdot {\overrightarrow{n}})$$

as the formula of the rotation operator. Other sources I see don't have the negative sign. How did they get the negative sign in here?

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asked Jun 8, 2015 at 15:22

Negative sign in rotation operator (quantum mechanics, angular momentum)

Schaum's Quantum Mechanics comes up with

exp((-i/$\hbar$)$\cdot \theta \cdot{\hat{L}} \cdot {\overrightarrow{n}}$)

as the formula of the rotation operator. Other sources I see don't have the negative sign. How did they get the negative sign in here?

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