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xicor
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Homework Statement
A particl of mass m in the potential V(x) (1/2)*mω[itex]^{2}[/itex]x[itex]^{2}[/itex] has the initial wave function ψ(x,0) = Ae[itex]^{-αε^2}[/itex].
a) Find out A.
b) Determine the probability that E[itex]_{0}[/itex] = hω/2 turns up, when a measuremen of energy is performed. Same for E[itex]_{1}[/itex] = 3hω/2
c) What energy values might turn up in an energy measurement?
d) Sketch the probability to measure hω/2 as a function of α and explain the maximum
Homework Equations
ψ[itex]_{n}[/itex] = (mω/πh)[itex]^{1/4}[/itex]*[1/√(2[itex]^{n}[/itex]*n!)]H[itex]_{n}[/itex](ε)e[itex]^{-(ε^2)/2}[/itex]
H(0) =1, H(1) = 2ε, H(2) = 4ε[itex]^{2}[/itex] - 2
ε = √(mω/h)*x
The Attempt at a Solution
So far I have done the normalization and have got A = (2αmω/∏h)[itex]^{1/2}[/itex] but can't think my way through part b yet. My understanding so far is that you find ψ(x,t) and consider the fact that E[itex]_{n}[/itex] = (n+1/2)hω but that case was for when you was just a linear combination of wave functions and A is a numerical fraction. Are you suppose to use the ψ[itex]_{n}[/itex](x,0) formula to find the wave function at different excited states and find the probability based off the given H values? I still don't see how you would get a probability though since if I were to apply the c[itex]_{n}[/itex] terms, they would still have one of the parameters from a normalization.