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Langevin equations for the run-and-tumble of swimming bacteria
(Royal Society of Chemistry, 2018-05)
The run and tumble motions of a swimming bacterium are well characterized by two stochastic variables: the speed v(t) and the change of direction or deflection x(t) = cosφ(t), where φ(t) is the turning angle at time t. ...
Run-and-tumble bacteria slowly approaching the diffusive regime
(American Physical Society, 2020)
The run-and-tumble (RT) dynamics followed by bacterial swimmers gives rise first to a ballistic motion due to their persistence and later, through consecutive tumbles, to a diffusive process. Here we investigate how long ...
Coarsening and clustering in run-and-tumble dynamics with short-range exclusion
The emergence of clustering and coarsening in crowded ensembles of self-propelled agents is studied using a lattice model in one dimension. The persistent exclusion process, where particles move at directions that change ...
A stochastic model for directional changes of swimming bacteria
(Royal Society of Chemistry, 2017-04-17)
In this work we introduce a stochastic model to describe directional changes in the movement of swimming bacteria. We use the probability density function (PDF) of turn angles, measured on tumbling wild-type E. coli, to ...
Run-and-tumble dynamics in a crowded environment: persistent exclusion process for swimmers
(AMERICAN PHYSICAL SOCIETY, 2014)
Run-and-tumble dynamics in a crowded environment: Persistent exclusion process for swimmers
(American Physical Society, 2014)
The effect of crowding on the run-and-tumble dynamics of swimmers such as bacteria is studied using a
discrete lattice model of mutually excluding particles that move with constant velocity along a direction that ...
Quantifying the sorting efficiency of self-propelled run-and-tumble swimmers by geometrical ratchets
(De Gruyter, 2013-12)
Suitable asymmetric microstructures can be used to control the direction of motion in microorganism populations. This rectification process makes it possible to accumulate swimmers in a region of space or to sort different ...
Coarsening and clustering in run-and-tumble dynamics with short-range exclusion
(American Physical Society, 2016)
The emergence of clustering and coarsening in crowded ensembles of self-propelled agents is studied using a lattice model in one dimension. The persistent exclusion process, where particles move at directions that change ...