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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?.

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## Intro to Quantum Mechanics (phys 304)

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**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!

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