Experimental measurement of the efficiency and the transport coherence of a cold-atom Brownian motor realized with cold atoms in optical lattices
2011 (English)In: Physical Review E. Statistical, Nonlinear, and Soft Matter Physics: Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, ISSN 1063-651X, E-ISSN 1095-3787, Vol. 83, no 2, 020102Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
American Physical Society , 2011. Vol. 83, no 2, 020102
IdentifiersURN: urn:nbn:se:umu:diva-38520DOI: 10.1103/PhysRevE.83.020102OAI: oai:DiVA.org:umu-38520DiVA: diva2:378925
Received 16 September 2010; published 3 February 20112010-12-162010-12-162016-04-15