An on-the-fly approach optimized switching: A special case of free energy simulation under nonequilibrium feedback control

Details An on-the-fly approach optimized switching: A special case of free energy simulation under nonequilibrium feedback control An on-the-fly approach optimized switching: A special case of free energy simulation under nonequilibrium feedback control

2010-05-18

arxiv.org/abs/1005.3104v2

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

We discuss the optimized switching free energy simulations in an analogy with the systems which are driven under nonequilibrium feedback control. We find an on-the-fly simulation approach of switching optimization is a special case of the nonequilibrium process under feedback control. In this approach, the switching rate is allowed to vary during the simulation and the optimization is done on-the-fly by utilizing the part of the simulation outcomes as the feedback information. In such a case, one should use generalized Jarzynski equality under nonequlilibrium feedback control for free energy calculation instead original Jarzynski equality.

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