Seminars of the Focus Area Complex Systems

Prof. Dr. C. Beta, Prof. Dr. K. Dethloff, Prof. Dr. R. Engbert, Prof. Dr. M. Holschneider, Prof. Dr. W. Huisinga, Prof. Dr. Ralf Metzler, Prof. Dr. A. Pikovsky, Prof. Dr. S. Reich, Prof. Dr. M. Rosenblum, Prof. Dr. G. Rüdiger, Prof. Dr. T. Scheffer, Prof. Dr. F. Scherbaum, Prof. Dr. J. Selbig, Prof. Dr. F. Spahn


Speaker: Arthur Straube, Computational Statistical and Biological Physics, FU Berlin

Title: Magnetically interacting particles in tilted periodic potentials: Theory and experiment * Colloquium on Complex and Biological Systems

Time: Fri, Jun 10, 2016, 10:15am

Place: bldg 28, room 0.108

We focus on single particle and collective effects in suspensions of magnetically interacting colloidal particles driven above periodic potentials, which can be addressed both theoretically and experimentally. We show that the description of a few relatively complex experimental systems can be mapped onto a class of one dimensional Frenkel-Kontorova models. We start by shortly considering the overdamped dynamics of a single particle in a tilted periodic potential [1] and dynamic mode locking under temporal modulation [2] and then proceed to the effects of chain assembly, depinning and front propagation [3]. The analytic and numerical predictions are in good agreement with the experimental results.

[1] M. Juniper, A. Straube, D. Aarts, R. Dullens, Phys. Rev. E 93, 012608 (2016)
[2] M. Juniper, A. Straube, R. Besseling, D. Aarts, R. Dullens, Nat. Comm. 6, 7187 (2015)
[3] F. Martinez-Perdrero, P. Tierno, T. Johansen, A. Straube, Sci. Rep. 6, 19932 (2016)

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Students' seminar: Theoretical Physics, PIK, Modeling & TSA Berlin-Potsdam-Colloquia: PhysGesellschaft Berlin, TU Berlin, Pro Physik, AIP, AEI, MPI-KGF, GFZ, HMI, PIK, AWI, Max Planck Institute for the History of Science, Mathematik, DPG Disputationen, & Vorschau UP

Udo Schwarz, Zentrum für Dynamik komplexer Systeme,
Universität Potsdam, Campus Golm Karl-Liebknecht-Str. 24, 14476 Potsdam, building 28, room 2.107
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Email: Udo.Schwarz AT

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DFG Sonderforschungsbereich 1294 Data assimilation

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