Notes for our 2nd class.

Thursday, April 4. (These notes are from before class (Thursday morning). Note the use of the "jump break".
Today we will look at stationary states* of an infinite square well ...


and possibly also of a harmonic oscillator. The pictures below show what these states look like at t=0. (Then going forward in time they have a complex oscillation.)

We will look at orthogonality and normalization for these states. Also we will consider how they can be used as a Fourier series basis and, related to that, how that can be combined to form non-stationary states.
* Stationary states, also known as energy eigenstates or eigen-functions. This are states with definite energy.