Reconstructing free-energy landscapes for nonequilibrium periodic potentials
| Autor: | Michael W. Jack, N. J. López-Alamilla, K. J. Challis |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Physics
Smoluchowski coagulation equation Non-equilibrium thermodynamics 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Periodic potential symbols.namesake Tilt (optics) Fourier transform 0103 physical sciences symbols Statistical physics 010306 general physics 0210 nano-technology Energy (signal processing) Brownian motion |
| Zdroj: | Physical review. E. 97(3-1) |
| ISSN: | 2470-0053 |
| Popis: | We present a method for reconstructing the free-energy landscape of overdamped Brownian motion on a tilted periodic potential. Our approach exploits the periodicity of the system by using the k-space form of the Smoluchowski equation and we employ an iterative approach to determine the nonequilibrium tilt. We reconstruct landscapes for a number of example potentials to show the applicability of the method to both deep and shallow wells and near-to- and far-from-equilibrium regimes. The method converges logarithmically with the number of Fourier terms in the potential. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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