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Monthly Archives: June 2011
QED: meeting I
Quantum Electrodynamics, that’s the topic six of us grad students decided to try and learn something about. Twice a week (W/F) for about an hour each time we’ll meet to present what we’ve figured out. We’re using “Photons and Atoms” … Continue reading
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What is the wave function?
For reasons I can’t recall I was rereading my quantum text last night (Ballentine). After presenting the coordinate representation of Schrodinger’s wave equation (eq. 4.4) (presuming the absence of a magnetic field): Ballentine writes the following: “Because (4.4) has the … Continue reading
Wave function units
Here’s a question I started thinking about this morning. What are the units on the wave function. Its not as simple as you might think. If we start with the Schrodinger Equation then we can see that has no units … Continue reading
1D Infinite well with an ‘extra’ dimension
A friend and I are reading through parts of Zweibach’s introductory String theory book in anticipation for a course in the fall. In chapter two he introduces a couple of things I found interesting. The first are light cone coordinates … Continue reading