Selected Exercises for the Feynman Lectures on Physics by Richard Feynman, Et Al. Chapter 27 Quantum Behavior: Waves, Particles, and Photons – Detailed Work by James Pate Williams, Jr. BA, BS, MSwE, PhD

Computerized solutions to Exercises 27.3 to 27.6:

Exercise 27.3 Main

Exercise 27.3

Exercise 27.4

Exercise 27.5

Exercise 27.6

Partial source code for the preceding C# application:

Exercise 27.3

Detailed solutions to Exercises 27.3 to 27.7 in a Portable Document File (PDF):

Feynman Exercises Chapter 27

 

Separation of Variables for the Time-Independent Schrödinger Equation for the Non-Relativistic Hydrogen-Like Atom by James Pate Williams, Jr. BA, BS, MSwE, PhD

Separation of Variables for the Time Independent Schroedinger Equation

Separation and Partial Solution of the Time Dependent Schrödinger Equation for the Non-Relativistic Hydrogen-Like Atom by James Pate Williams, Jr. BA, BS, MSwE, PhD

In the following terse document we start with the non-relativistic and time dependent Schrödinger equation for the hydrogen-like atom of atomic number Z. We then separate the equation into one ordinary differential equation eigenvalue problem involving the variable time and two partial differential equations eigenvalue problems, each with three variables. The resulting center of mass partial differential equation eigenvalue problem is separable in Cartesian coordinates. The other eigenvalue problem is not separable in Cartesian coordinates due to the nature of the potential energy function in the Hamiltonian operator. This treatment is an expansion on the excellent textbook section that is cited in the References section of the document.

The time dependent Schrödinger equation for the hydrogen