Experimental measurement of efficiency and transport coherence of a cold-atom Brownian motor in optical lattices.

The rectification of noise into directed movement or useful energy is utilized by many different systems. The peculiar nature of the energy source and conceptual differences between such Brownian motor systems makes a characterization of the performance far from straightforward. In this work, where the Brownian motor consists of atoms interacting with dissipative optical lattices, we adopt existing theory and present experimental measurements for both the efficiency and the transport coherence. We achieve up to 0.3% for the efficiency and 0.01 for the Péclet number.

• Publication year

  2011

• Venue

  Physical review. E, Statistical, nonlinear, and soft matter physics

• Publication date

  2011-01-04

• Fields of study

  Medicine, Physics

• Identifiers
  DOI 10.1103/PhysRevE.83.020102arXiv 1101.0808PMID 21405800
• 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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