Events at Physics |
Events on Monday, November 10th, 2008
- Plasma Physics (Physics/ECE/NE 922) Seminar
- Improved Confinement at High Current in the MST Reversed-Field Pinch" & "Momentum Transport during Reconnection Events in the MST Reversed-Field Pinch
- Time: 12:05 pm
- Place: 1227 Engineering Hall
- Speaker: Daniel Den Hartog & Alexey Kuritsyn, UW-Madison, Dept of Physics/Plasma
- R. G. Herb Condensed Matter Seminar
- Novel Orders from Geometrical Frustration and Orbital Degeneracy
- Time: 3:00 pm
- Place: 5310 Chamberlin
- Speaker: Ashvin Vishwanath, University of California - Berkeley
- Abstract: In frustrated systems, competing interactions lead to degeneracies - which in turn produce complex phase diagrams and sometimes entirely new states of matter. Frustration often arises from the lattice geometry, and a number of normally weak effects can be important to determining the state of the system. I will discuss how coupling to phonons leads to a complex phase diagram for triangular lattice antiferromagnets and how quantum fluctuations can stabilize a supersolid phase, where the system is at once both a crystal and a superfluid. Frustration can also arise from orbital degrees of freedom, and I will discuss a promising candidate for a quantum liquid state with topological order, in a spin-orbital model.
- Host: Chubukov
- High Energy Seminar
- Diffractive W and Z Boson Production at the Tevatron
- Time: 4:00 pm - 5:00 pm
- Place: 4274 Chamberlin (Coffee and Cookies at 3:45 pm)
- Speaker: Mary Convery, FNAL
- Host: Matt Herndon