2015/12/22 by Jong-Min Park, J. -M. Park, Jae Sung Lee +3 · 1 citation
Engineering · Mathematics · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Brownian motion #Computer science #Mathematical economics #Mathematics #Molecular Communication and Nanonetworks #Physics #Statistical physics #Statistics #cond-mat.stat-mech #stochastic dynamics and bifurcation
paper · pdf · doi:10.1103/physreve.93.032146
published as Phys. Rev. E 93, 032146 (2016) · 8 pages, 6 figures
arxiv created 2015/12/22 · openalex publication_date 2016/03/28 · arxiv updated 2016/04/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A Brownian information engine is a device extracting mechanical work from a single heat bath by exploiting the information on the state of a Brownian particle immersed in the bath. As for engines, it is important to find the optimal operating condition that yields the maximum extracted work or power. The optimal condition for a Brownian information engine with a finite cycle time τ has been rarely studied because of the difficulty in finding the nonequilibrium steady state. In this study, we introduce a model for the Brownian information engine and develop an analytic formalism for its steady-state distribution for any τ. We find that the extracted work per engine cycle is maximum when τ approaches infinity, while the power is maximum when τ approaches zero.