# Time-dependence of Expectation Values

This exercise takes students briefly through the Heisenberg representation and Ehrenfest's theorem, then students explore the time-dependence of superposition states and their expectation values in the harmonic oscillator potential.

In particular, students can explore a coherent state as well as an amplitude-squeezed state.

Note that there are two flow files needed for this exercise. Both are linked below.

Key words and phrases: Expectation values, squeezing, coherent states, harmonic oscillator, time-dependence

The PDF file for this exercise can be found here.

A zip folder containing the flowfiles for this exercise can be found here.