Question

A particle initially in the state \(|\psi\rangle\) has the position-space wavefunction

$$ \psi(x)=N e^{-x^{2} / 8 a^{2}} $$

(a) What is the normalization coefficient \(N\) ?

(b) The state is then altered. Find the position-space wavefunction of the altered state

$$ \left|\psi^{\prime}\right\rangle=e^{-i p c / A}|\psi\rangle $$

(c) Calculate the expectation values of \((\ell)\), for both \(|\psi\rangle\) and \(\left|\psi^{\prime}\right\rangle\).


(6) Translation Operator: A particle initially in the state l has the position-space wavefunction ψ(x) = Ne-x2/6a3 (a) What is the normalization coefficient N? (b) The state is then altered. Find the position-space wavefunction of the altered state (c) Calculate the expectation values of (8), for both IV) and IV).


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Answer #1

I Pc 0n1

> Can you help me please? When you calculated the expectation value of x for psi prime, you didn't square the mess of fractions ( the 1 + (cx/4a^2)^2 + cx/4a....) but shouldn't you have? Arent they a part of the wavefunction that is being squared?

zachboots Sat, Oct 9, 2021 3:45 PM

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