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Persistence and survival in equilibrium step fluctuations

Dasgupta, C (Indian Institute of Science)
Tuesday 27 June 2006, 14:00-15:00

Seminar Room 1, Newton Institute


The concepts of persistence and survival are used to characterize the first-passage properties of equilibrium fluctuations of steps on a vicinal surface. Analytic and numerical results are obtained for temporal and spatial persistence and survival probabilities and for the probability of persistent large deviations. These theoretical results are found to be in very good agreement with those obtained from experiments in which time-dependent scanning tunneling microscopy is used to study equilibrium step fluctuations.


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