Applied and Computational Mathematics Seminar
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Seminar
Escaping cooperatively with low energies, by Lutz Schimansky-Geier (Department of Physics, Humboldt University, Berlin Germany)
| What |
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|---|---|
| When |
Sep 18, 2008 from 04:10 pm to 05:00 pm |
| Where | Morton Hall, room 227 |
| Contact Name | Vardges Melkonian |
| Contact Email | vardges@math.ohiou.edu |
| Contact Phone | (740) 593-1276 |
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Abstract:In the talk I describe a nonlinear escape of a chain of N particles out of a bassin of attraction by concentrating their common energy on a few degrees of freedom. After a nucleus is formed spontaneously (no noise !!) the escaped particles pull the chain over the barrier. In a wide region of parameters this escape process is faster than escapes by thermal agitation with a dissipative bath (Kramers problem). One and two dimensional problems are presented and I show applications of the problem to a dissipative chain with an oscillating bottleneck.
