Autonomous Brownian gyrators: A study on gyrating characteristics

研究成果: 雜誌貢獻期刊論文同行評審

8 引文 斯高帕斯(Scopus)


We study the nonequilibrium steady-state (NESS) dynamics of two-dimensional Brownian gyrators under harmonic and nonharmonic potentials via computer simulations and analyses based on the Fokker-Planck equation, while our nonharmonic cases feature a double-well potential and an isotropic quartic potential. In particular, we report two simple methods that can help understand gyrating patterns. For harmonic potentials, we use the Fokker-Planck equation to survey the NESS dynamical characteristics; i.e., the NESS currents gyrate along the equiprobability contours and the stationary point of flow coincides with the potential minimum. As a contrast, the NESS results in our nonharmonic potentials show that these properties are largely absent, as the gyrating patterns are very distinct from those of corresponding probability distributions. Furthermore, we observe a critical case of the double-well potential, where the harmonic contribution to the gyrating pattern becomes absent, and the NESS currents do not circulate about the equiprobability contours near the potential minima even at low temperatures.

期刊Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
出版狀態已出版 - 2月 2021


深入研究「Autonomous Brownian gyrators: A study on gyrating characteristics」主題。共同形成了獨特的指紋。