Date:
Wed, 01/05/201912:00-13:30
Location:
Danciger B building, Seminar room
Lecturer: David Mukamel, Weizmann Institute
Abstract:
Absolute Negative Mobility (ANM) is a phenomenon whereby current in a stationary system
is produces in a direction opposite to the driving field. Naïve argument suggests that ANM
cannot take place in systems in thermal equilibrium as this could lead to a violation of the second law of thermodynamics. Thus numerous previous theoretical and experimental studies of ANM have dealt with the response to a driving field in nonequilibrium steady states. In this talk a simple lattice model of a driven tracer is introduced and demonstrated to exhibit ANM in equilibrium, with no violation of the basic laws of thermodynamics. The limits of validity of the naïve argument are elucidated and the entropy production which accompany the motion of the tracer is calculated [1].
[1] J. Cividini, H. A. Posch and D. Mukamel J. Phys. A 51, 085001 (2018)
Abstract:
Absolute Negative Mobility (ANM) is a phenomenon whereby current in a stationary system
is produces in a direction opposite to the driving field. Naïve argument suggests that ANM
cannot take place in systems in thermal equilibrium as this could lead to a violation of the second law of thermodynamics. Thus numerous previous theoretical and experimental studies of ANM have dealt with the response to a driving field in nonequilibrium steady states. In this talk a simple lattice model of a driven tracer is introduced and demonstrated to exhibit ANM in equilibrium, with no violation of the basic laws of thermodynamics. The limits of validity of the naïve argument are elucidated and the entropy production which accompany the motion of the tracer is calculated [1].
[1] J. Cividini, H. A. Posch and D. Mukamel J. Phys. A 51, 085001 (2018)