# 3: One-Dimensional Potentials

- Page ID
- 16906

- 3.1: The Free Particle
- Before we begin our exploration of the quantum mechanics of a particle bound by a potential well, we need to examine the simpler case where the particle is not bound at all.

- 3.2: Infinite Square Well
- We return to the all-purpose model of the particle-in-a-box, to see how our new-found formalism fits into something with which we are already familiar.

- 3.3: Harmonic Oscillator
- We continue our review of one-dimensional potential wells with the simple harmonic oscillator potential.

- 3.4: Finite Square Well
- We now look at a square well whose boundary conditions make it more difficult to solve than the infinite square well, but which has features that make it a better model for real physical systems.

- 3.5: Tunneling
- We conclude our discussion of one-dimensional quantum mechanics with a look at the phenomenon of tunneling. This is a natural extension of the wave function "leaking" into classically-forbidden regions of potentials.