https://doi.org/10.1140/epjs/s11734-021-00078-0
Regular Article
Orientation fluctuations in magnetotactic swimming
1
Institute for the Dynamics of Complex Systems, University of Göttingen, Friedrich-Hund-Platz 1, 37077, Göttingen, Germany
2
Faculty of Physics, University of Regensburg, Universitätsstraße 31, 93051, Regensburg, Germany
e
stefan.klumpp@phys.uni-goettingen.de
Received:
12
May
2020
Accepted:
5
January
2021
Published online:
15
April
2021
The fluctuations experienced by magnetic microswimmers in a magnetic field often have non-thermal contributions, in particular in the case of biological swimmers such as magnetotactic bacteria. Here we study a model for an active self-propelled particle subject to correlated internal noise as a model for the active, non-thermal noise contribution and determine the effect of the correlation time on the diffusion of the swimmer and on its orientation in a magnetic field. A description in terms of an effective temperature is possible, but has limitations.
© The Author(s) 2021
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