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5/12 CMT seminar

Subject: 5/12 CMT seminar
From: James Gotfredson <gotfredson physics harvard edu>
Date: Thu, 12 May 2005 08:58:33 -0400
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Just announced:

12pm, Thursday, May 12th (today)
Harvard University
Department of Physics
Condensed Matter Theory Seminar
Jefferson 453
"Mesoscopic Kondo Problem"
Denis Ullmo

Abstract:

This talk describes recent work on the effect of mesoscopic fluctuations on a magnetic impurity coupled to a spatially confined electron gas. Performing Quantum Monte Carlo calculations for model chaotic quantum dots, we find that the fluctuations destroy the one-parameter scaling of thermodynamic correlators familiar from the bulk Kondo problem. The mesoscopic fluctuations of the Kondo properties can nevertheless be reproduced in the high temperature regime within a poor man's scaling framework.

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