# ISW hamiltonian in energy basis

## 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

$H=\frac{p^2}{2m}+V$

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

## The Attempt at a Solution

How should I convert H into matrix?