title: Spatial persistence and survival probabilities for fluctuating interfaces.
abstract: We report the results of numerical investigations of the steady-state (SS) and finite-initial-conditions (FIC) spatial persistence and survival probabilities for (1+1) -dimensional interfaces with dynamics governed by the nonlinear Kardar-Parisi-Zhang equation and the linear Edwards-Wilkinson (EW) equation with both white (uncorrelated) and colored (spatially correlated) noise. We study the effects of a finite sampling distance on the measured spatial persistence probability and show that both SS and FIC persistence probabilities exhibit simple scaling behavior as a function of the system size and the sampling distance. Analytical expressions for the exponents associated with the power-law decay of SS and FIC spatial persistence probabilities of the EW equation with power-law correlated noise are established and numerically verified.
authors.affiliation: Department of Physics, University of Maryland, College Park, Maryland 20742-4111, USA. mconstan@glue.umd.edu
authors.forename: M
authors.initials: M
authors.lastname: Constantin
authors.forename: S Das
authors.initials: SD
authors.lastname: Sarma
authors.forename: C
authors.initials: C
authors.lastname: Dasgupta