Chapter 8 - WKB Approximation

Tunnelling

  • Wall penetration
  • Tunnelling
  • Simultaneous solution
  • Reflections and transmission
  • WKB approximation
  • Examples of tunnelling
  • Ammonia maser
  • STM animation

    • Alpha decay

  • KE and PE for alpha decay
  • Approximate by rectangular barrier
  • Transparency of rectangular barrier
  • Tries per second
  • Alpha particle motion within the nucleus
  • Alpha decay through Coulomb barrier
  • Low energy approximation