PIRSA:12060000  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Relaxation in Driven Integer Quantum Hall Edge States
Speaker(s): John Chalker
Abstract: This talk will be about non-equilibrium many-body physics in integer quantum Hall edge states far from equilibrium. Recent experiments have generated a highly non-thermal electron distribution by bringing together at a point contact two quantum Hall edge states originating from sources at different potentials. The relaxation of this distribution to a stationary form is observed as a function of distance downstream from the contact [Phys. Rev. Lett. 105, 056803 (2010)]. I will discuss the broader context for the experiments and a physical picture of the equilibration process. I will also present an exact treatment of a minimal model for the experiment with results that account well for the observations. [Joint work with Dmitry Kovrizhin]
Date: 01/06/2012 - 2:30 pm
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