Publikation: Brownian Dynamics simulations of model colloids in channel geometries and external fields
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We review the results of Brownian Dynamics simulations of colloidal particles in external fields confined in channels. Super-paramagnetic Brownian particles are well suited two- dimensional model systems for a variety of problems on different length scales, ranging from pedestrian walking through a bottleneck to ions passing ion-channels in living cells. In such systems confinement into channels can have a great influence on the diffusion and transport properties. Especially we will discuss the crossover from single file diffusion in a narrow channel to the diffusion in the extended two-dimensional system. Therefore a new algorithm for computing the mean square displacement (MSD) on logarithmic time scales is presented. In a different study interacting colloidal particles were dragged over a washboard potential and are additionally confined in a two-dimensional micro-channel. In this system kink and anti-kink solitons determine the depinning process of the particles from the periodic potential.
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SIEMS, Ullrich, Peter NIELABA, 2018. Brownian Dynamics simulations of model colloids in channel geometries and external fields. IX Brazilian Meeting on Simulational Physics (BMSP 2017). Natal, Brazil, 21. Aug. 2017 - 25. Aug. 2017. In: VAZ DA COSTA, Bismarck, ed. and others. IX Brazilian Meeting on Simulational Physics (BMSP 2017). Bristol: IOP Publishing, 2018, 012011. Journal of Physics : Conference Series. 1012. ISSN 1742-6588. eISSN 1742-6596. Available under: doi: 10.1088/1742-6596/1012/1/012011BibTex
@inproceedings{Siems2018-05-03Brown-44431, year={2018}, doi={10.1088/1742-6596/1012/1/012011}, title={Brownian Dynamics simulations of model colloids in channel geometries and external fields}, number={1012}, issn={1742-6588}, publisher={IOP Publishing}, address={Bristol}, series={Journal of Physics : Conference Series}, booktitle={IX Brazilian Meeting on Simulational Physics (BMSP 2017)}, editor={Vaz da Costa, Bismarck}, author={Siems, Ullrich and Nielaba, Peter}, note={Article Number: 012011} }
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