Expectation value of P for an infinite-square well


by jmm5872
Tags: expectation, infinitesquare
jmm5872
jmm5872 is offline
#1
Mar6-12, 11:05 PM
P: 43
I just have a simple question to get me started. If I am given an initial value wavefunction ψ(x,0) and I am asked to find <P> at t = 0 can I use this:

<P> = -ih∫ψ*(x,0)[itex]\frac{∂}{∂x}[/itex]ψ(x,0)dx

or do I need to find ψ(x,t) before I find <P>?
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bloby
bloby is offline
#2
Mar7-12, 03:45 AM
P: 52
No you are right (h bar)


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