Publikation: Diffusion of colloidal particles in a tilted periodic potential : Theory versus experiment
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2008
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Physical Review E. 2008, 77(4), 041107. ISSN 1539-3755. eISSN 1550-2376. Available under: doi: 10.1103/PhysRevE.77.041107
Zusammenfassung
We investigate the diffusion of a colloidal particle in a tilted periodic potential created by means of ten rotating optical tweezers arranged on a circle. Because of the viscous drag, the trap rotation leads to the onset of a tilting force in the corotating reference frame, so that in that frame the system can be described as an overdamped Brownian particle in a tilted periodic potential. The excellent agreement of the velocity and diffusion coefficient as a function of rotating frequency with theoretical predictions allowed us to extract the main parameters characterizing the system--the coefficient of free thermal diffusion and the potential corrugation depth--from the experimental results.
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EVSTIGNEEV, Mykhaylo, Olga ZVYAGOLSKAYA, Stefan BLEIL, Ralf EICHHORN, Clemens BECHINGER, Peter REIMANN, 2008. Diffusion of colloidal particles in a tilted periodic potential : Theory versus experiment. In: Physical Review E. 2008, 77(4), 041107. ISSN 1539-3755. eISSN 1550-2376. Available under: doi: 10.1103/PhysRevE.77.041107BibTex
@article{Evstigneev2008-04-08Diffu-39514,
year={2008},
doi={10.1103/PhysRevE.77.041107},
title={Diffusion of colloidal particles in a tilted periodic potential : Theory versus experiment},
number={4},
volume={77},
issn={1539-3755},
journal={Physical Review E},
author={Evstigneev, Mykhaylo and Zvyagolskaya, Olga and Bleil, Stefan and Eichhorn, Ralf and Bechinger, Clemens and Reimann, Peter},
note={Article Number: 041107}
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