Browsing by Author "Dorosz, S."

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    Dynamical phase transition of a one-dimensional transport process including death
    Dorosz, S.; Mukherjee, S.; Platini, T. (American Physical Society, 2010-04)
    Motivated by biological aspects related to fungus growth, we consider the competition of growth and corrosion. We study a modification of the totally asymmetric exclusion process, including the probabilities of injection alpha and death of the last particle delta. The system presents a phase transition at delta(c)(alpha), where the average position of the last particle < L > grows as root t. For delta> delta(c), a nonequilibrium stationary state exists while for delta
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    Entropy production in nonequilibrium steady states: A different approach and an exactly solvable canonical model
    Ben-Avraham, D.; Dorosz, S.; Pleimling, Michel J. (American Physical Society, 2011-07-12)
    We discuss entropy production in nonequilibrium steady states by focusing on paths obtained by sampling at regular (small) intervals, instead of sampling on each change of the system's state. This allows us to directly study entropy production in systems with microscopic irreversibility. The two sampling methods are equivalent otherwise, and the fluctuation theorem also holds for the different paths. We focus on a fully irreversible three-state loop, as a canonical model of microscopic irreversibility, finding its entropy distribution, rate of entropy production, and large deviation function in closed analytical form, and showing that the observed kink in the large deviation function arises solely from microscopic irreversibility.