Intro to Quantum Mechanics(phys 304) • Instructor: Prof. Marcel Franz • Textbook: “Introduction to QM” by D.J. Griffiths (second edition) • Lectures: Tu & Th, 9:30-11:15 • Course webpage: www.physics.ubc.ca/~franz/phy304.html
Particle-wave duality What is this? Young’s “double-slit” experiment Interference: Light consists of WAWES
Light interference Path difference: Intensity maxima: Intensity minima:
Now perform the same experiment with electrons Experiment by A. Tonomura of Hitachi Corp., June 1999
Electrons: particles or waves? http://www.hqrd.hitachi.co.jp/em/doubleslit.cfm
What can we conclude about the electron from Tonomura experiment? Electrons appear to have both particle-like andwave-likeproperties!