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Condensed Matter Seminars

ics Condensed Matter
Thursday, February 13, 2003
2:30 PM
Physics Building, Room 313
Note special time.
John Cardy [Host: Paul Fendley]
IAS and Oxford University
"The Effect of Quenched Impurities on First-Order Transitions"
In two dimensions, it is known that the presence of any finite concentration of quenched impurities drives a first-order phase transition into a continuous one (or destroys it completely). In three dimensions, this is believed also to occur, above some critical concentration. However, the nature of the continuous transition which may result is very poorly understood. This talk will review the physics behind these results, discuss some of the numerical efforts at understanding the problem, and finally describe one model for which a more complete picture is available.

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