Date & Time |
25 January 2007 (Thur), 10:00 am - 11:00 am
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|---|---|
Place |
6F seminar room, Sengen site
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Speaker |
Prof. Moo Young Choi
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Affiliation |
Department of Physics, Seoul National University
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Title |
Dynamics of driven systems - mode locking, symmetry breaking, and resonance
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Abstract |
A many-particle system under external drive may display rich dynamic behaviors such as mode locking, dynamic transition, and resonance.
As a physically realizable example, we consider frustrated arrays of superconducting junctions driven by currents. At zero temperature the mode locking phenomena is manifested by giant Shapiro steps in the current-voltage characteristics.
Melting of these steps due to thermal fluctuations is accompanied by a dynamic transition to the disordered state. Also discussed are the characteristic stochastic resonance behavior and vortex motion in response to the driving currents.
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Contact |
Dr. Xiao Hu (胡暁) 
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Dynamics of driven systems - mode locking, symmetry breaking, and resonance
