Coherent Hydrodynamic Coupling for Stochastic Swimmers

Details Coherent Hydrodynamic Coupling for Stochastic Swimmers Coherent Hydrodynamic Coupling for Stochastic Swimmers

2010-07-13

arxiv.org/abs/1007.2077v1

Europhys. Lett. 90, 68003 (2010)

Physics

Biological Physics

6 pages, 3 figures

Scientific paper

A recently developed theory of stochastic swimming is used to study the notion of coherence in active systems that couple via hydrodynamic interactions. It is shown that correlations between various modes of deformation in stochastic systems play the same role as the relative internal phase in deterministic systems. An example is presented where a simple swimmer can use these correlations to hunt a non-swimmer by forming a hydrodynamic bound state of tunable velocity and equilibrium separation. These results highlight the significance of coherence in the collective behavior of nano-scale stochastic swimmers.

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