Optimal tuning of a confined Brownian information engine.

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.

• Publication year

  2015

• Venue

  Physical Review E

• Publication date

  2015-12-22

• Fields of study

  Mathematics, Physics, Medicine, Engineering

• Identifiers
  DOI 10.1103/PhysRevE.93.032146arXiv 1512.07144PMID 27078331
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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