Introduction

• Last Time: Matter Waves

  • Theory: de Broglie (1924) proposes matter waves
    • assumes all “particles” (e.g. electrons) also have a wave associated with them with wavelength determined by its momentum,????= h/p.
    • Bohr’s quantization follows because the electron in an atom is described by a “standing electron wave”.
  • Experiment: Davisson-Germer (1927) studies electron scattering from crystals - see interference that corresponds exactly to the predicted de Broglie wavelength.
  • The Schrodinger equation: Master Equation of Quantum Mechanics: like Newton’s equation F=ma in classical mechanics.
  • But what waving?

• Today: Probability is intrinsic to Quantum Mechanics; Heisenberg Uncertainty Principle

Previous slide

Next slide

Back to first slide

View graphic version