# Chapter 3: The Gaussian Wavepacket

Gaussian wavepacket. in a harmonic potential. The envelope is the absolute value and the oscillatory curve in the interior is the imaginary part of the wavepacket. The zero-point, phase has been removed for clarity. Note that the average position and momentum change according to the classical equations of motion, i.e. the average momentum vanishes at the classical turning points and is maximum at the potential minimum.