http://hdl.handle.net/20.500.12128/10750
Title: | Coexistence of absolute negative mobility and anomalous diffusion. |
Authors: | Spiechowicz, Jakub Hanggi, P. Łuczka, Jerzy |
Keywords: | anomalous diffusion; negative mobility; Brownian particle |
Issue Date: | 14-Aug-2019 |
Citation: | "New Journal of Physics", Vol. 21 (2019), Art. no. 083029 |
Abstract: | Using extensive numerical studies we demonstrate that absolute negative mobility of a Brownian particle (i.e. the net motion into the direction opposite to a constant biasing force acting around zero bias) does coexist with anomalous diffusion (AD). The latter is characterised in terms of a nonlinear scaling with time of the mean-square deviation of the particle position. SuchADcovers ‘coherent’ motion (i.e. the position dynamics x(t) approaches in evolving time a constant dispersion), ballistic diffusion, subdiffusion, superdiffusion and hyperdiffusion. In providing evidence for this coexistence we consider a paradigmatic model of an inertial Brownian particle moving in a one-dimensional symmetric periodic potential being driven by both an unbiased time-periodic force and a constant bias. This very setup allows for various sorts of different physical realisations. |
URI: | http://hdl.handle.net/20.500.12128/10750 |
DOI: | 10.1088/1367-2630/ab3764 |
ISSN: | 1367-2630 |
Appears in Collections: | Artykuły (WNŚiT) |
File | Description | Size | Format | |
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Spiechowicz_Coexistence_of_absolute_negative_mobility_and_anomalous_diffusion.pdf | 854,57 kB | Adobe PDF | View/Open |
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