Week of 4/7/08

Download Hydrogen wavefunctions plotted in 3D using Mathematica

Hydrogen from Hyperphysics

H spectrum flash simulation

Spontaneous emission. Why does an electron in an excited state decay at all? The theory we've presented so far explicitly prohibits this since stationary states are, well, stationary. This is the realm of Quantum Electrodynamics (QED). Spontaneous emission in free space depends on vacuum fluctuations.

Thinking about laser line width. Remember: $\Delta t \Delta E \geq \hbar/2$