# Near-optimal protocols in complex nonequilibrium transformations

@article{Gingrich2016NearoptimalPI, title={Near-optimal protocols in complex nonequilibrium transformations}, author={Todd R. Gingrich and Grant M. Rotskoff and Gavin E. Crooks and Phillip L. Geissler}, journal={Proceedings of the National Academy of Sciences}, year={2016}, volume={113}, pages={10263 - 10268} }

Significance Classical thermodynamics was developed to help design the best protocols for operating heat engines that remain close to equilibrium at all times. Modern experimental techniques for manipulating microscopic and mesoscopic systems routinely access far-from-equilibrium states, demanding new theoretical tools to describe the optimal protocols in this more complicated regime. Prior studies have sought, in simple models, the protocol that minimizes dissipation. We use computational…

## 33 Citations

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By numerically minimizing a linear-response approximation to the excess work, protocols in control-parameter spaces of a 2D Ising model are designed that efficiently drive the system from the all-down to all-up configuration and flatten the energy landscape, making accessible many configurations that would otherwise have prohibitively high energy and, thus, decreasing spin correlations.

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