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## Homework Statement

Find the matrix elements of the Hamiltonian in the energy basis for the ISW. Is it

diagonal? Do you expect it to be diagonal?

## Homework Equations

[itex] H=\frac{p^2}{2m}+V [/itex]

[itex] \frac{d}{dt}\langle Q \rangle = \frac{i}{\hbar} \langle[\hat H, \hat Q] \rangle + \langle \frac{\partial \hat Q}{\partial t} \rangle [/itex]

## The Attempt at a Solution

How should I convert H into matrix?