Thermal Casimir drag in fluctuating classical fields

Abstract

A uniformly moving inclusion which locally suppresses the fluctuations of a classical thermally excited field is shown to experience a drag force which depends on the dynamics of the field. It is shown that in a number of cases the linear friction coefficient is dominated by short distance fluctuations and takes a very simple form. Examples where this drag can occur are for stiff objects, such as proteins, nonspecifically bound to more flexible ones such as polymers and membranes.

4 pages RevTex, 2 figures

References in corpus (1)

• Forces exerted by a correlated fluid on embedded inclusions

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