Drag forces on inclusions in classical fields with dissipative dynamics.
نویسندگان
چکیده
We study the drag force on uniformly moving inclusions which interact linearly with dynamical free field theories commonly used to study soft condensed matter systems. Drag forces are shown to be nonlinear functions of the inclusion velocity and depend strongly on the field dynamics. The general results obtained can be used to explain drag forces in Ising systems and also predict the existence of drag forces on proteins in membranes due to couplings to various physical parameters of the membrane such as composition, phase and height fluctuations.
منابع مشابه
Drag forces in classical fields.
Inclusions, or defects, moving at constant velocity through free classical fields are shown to be subject to a drag force which depends on the field dynamics and the coupling of the inclusion to the field. The results are used to predict the drag exerted on inclusions, such as proteins, in lipid membranes due to their interaction with height and composition fluctuations. The force, measured in ...
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ورودعنوان ژورنال:
- The European physical journal. E, Soft matter
دوره 32 4 شماره
صفحات -
تاریخ انتشار 2010