# Physics & Astronomy Colloquium
3:30 PM, Friday, October 23, 2009
Room 155, Chem-Phys Building
**Dr. Eduardo Fradkin **
Department of Physics
University of Illinois, Urbana-Champaign
**"Can you hear the shape of Schroedinger's cat?''**
In this colloquium I will discuss the physics of topological phases in
condensed matter. The prototype of systems of this type are
two-dimensional electron gases in large magnetic fields in the regime of
the fractional quantum Hall effect. The behavior of the entanglement
entropy turns out to be a powerful way to characterize these topological
fluids and their quantum phase transitions. Systems of these type have
been proposed as candidates for topological quantum computation.
Refreshments will be served in CP 179 at 3:15 PM |