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Remarks about the Janossy effect

Presented by: 
D Kinderlehrer Carnegie Mellon University
Date: 
Monday 8th April 2013 - 10:00 to 11:00
Abstract: 
Light can change the orientation of a liquid crystal. This is the optical Freedericksz transition, discovered by Saupe. In the Janossy effect, the threshold intensity of the Freedericksz transition is dramatically resuced by the addition of a small amount of dye to the sample. We investigate the theory for this effect derived by E, Kosa, and Palffy-Muhoray. Several themes come together, including molecular motors and Monge-Kantorovich mass transport. This is joint work with Michal Kowalczyk.
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