Quantum foundations: waves, uncertainty and measurement

This lesson is part of the full course.

In it you will learn to:

• Compute photon energies and de Broglie wavelengths in seconds with hc ≈ 1240 eV·nm and ħc ≈ 197 eV·nm
• Use the uncertainty principle to estimate confinement energies and natural linewidths
• Read measurement probabilities and expectation values off a state written in an eigenbasis
• Evaluate commutators and decide which observables can have definite values together
• Predict how a superposition evolves in time, including when ⟨x⟩ oscillates