Physics 127a: Class Notes
Lecture 13: Ideal Quantum Gases
Quantum States Consider an ideal gas in a box of sides L with periodic boundary conditions (x + L, y, z) = (x, y, z) etc. (1)
For a single particle the wavefunction of the energy eigenstate satisfi
Physics 127a: Class Notes
Lecture 12: Quantum Statistical Mechanics
Basic Expressions The results we have found for classical statistical mechanics have corresponding ones when quantum mechanics is important. The average value of an observable is given by
Physics 127a: Class Notes
Lecture 3: Motivation for Fundamental Postulate (Classical)
Hamiltonian formulation of the dynamics For N particles there are 3N coordinates q1 , q2 . . . q3N and 3N conjugate momenta p1 , p2 . . . p3N . Usually these would be th