Find the expectation value of the potential energy in the nth state of the harmonic oscillator.(adsbygoogle = window.adsbygoogle || []).push({});

This is his example 2.5 in the book, he uses a[itex]\pm[/itex]=1/Sqrt[2hmw]([itex]\mp[/itex]ip+mwx) to get x=Sqrt[h/2mw](a[itex]_{+}[/itex]+a[itex]_{-}[/itex])

My question how does he do this? I can't seem to make the algebraic manipulations to get it into that form to follow out his example.

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# Homework Help: Quantum Griffiths Example

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