Joint Physics and Engineering Physics Colloquium
Friday, April 28, 2000
4:00 PM
Physics Building, Room 204
Note special time.
Note special room.

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"Pure-Electron Plasma Experiments"

Joel Fajans , University of California at Berkely
[Host: J. Dorning/Joseph Poon]
Plasmas made only of electrons are remarkably stable and manipulatable. They are ideal for studying basic plasma physics, two-dimensional fluid dynamics, and nonlinear dynamics. I will discuss some basic plasma results, including a demonstration that like charges can attract rather than repel, and that sometimes mountaintops are just as stable as valley floors. Next I will describe some fluid results like the instability shown in the figure below. Finally I will discuss autoresonance, a very basic and general phenomenon which occurs in nonlinear oscillator systems.

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