PHYS 201 - Lecture 22 - Quantum Mechanics IV: Measurement Theory, States of Definite Energy
Lecture 22 - Quantum Mechanics IV: Measurement Theory, States of Definite Energy
It is shown how to extract the odds for getting different values of momentum from a generic wave function by writing it as a sum over functions of definite momentum. A recipe is given for finding states of definite energy, which requires solving a differential equation that depends on what potential the particle is experiencing. The particle in a box is considered and the allowed energies derived.