Entropy Production of Brownian Macromolecules with Inertia

Details Entropy Production of Brownian Macromolecules with Inertia Entropy Production of Brownian Macromolecules with Inertia

2003-03-05

arxiv.org/abs/physics/0303016v3

Phys. Rev. Lett. 93, 120602 (2004)

Physics

Classical Physics

10 pages, 1 figure

Scientific paper

10.1103/PhysRevLett.93.120602

We investigate the nonequilibrium steady-state thermodynamics of single Brownian macromolecules with inertia under feedback control in isothermal ambient fluid. With the control being represented by a velocity-dependent external force, we find such open systems can have a negative entropy production rate and we develop a mesoscopic theory consistent with the second law. We propose an equilibrium condition and define a class of external forces, which includes a transverse Lorentz force, leading to equilibrium.

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