22. Quantum mechanics IV: Measurement theory, states of definite energy

For more information about Professor Shankar’s book based on the lectures from this course, Fundamentals of Physics: Mechanics, Relativity, and Thermodynamics, visit http://bit.ly/1jFIqNu.

Fundamentals of Physics, II (PHYS 201)

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.

00:00 – Chapter 1. Review of Wave Functions
40:13 – Chapter 2. The Schrodinger Equation
54:20 – Chapter 3. Quantization of Energy
63:43 – Chapter 4. Particle in a Box

This course was recorded in Spring 2010.

For more information about Professor Shankar’s book based on the lectures from this course, Fundamentals of Physics: Mechanics, Relativity, and Thermodynamics, visit http://bit.ly/1jFIqNu.