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. 2019 Oct;100(4-1):042608.
doi: 10.1103/PhysRevE.100.042608.

Guided active particles

Reinaldo García-García  1 , Pierre Collet  2 , Lev Truskinovsky  1
Affiliations

Guided active particles

Reinaldo García-García et al. Phys Rev E. 2019 Oct.

Abstract

To account for the possibility of an externally driven taxis in active systems, we develop a model of a guided active drift which relies on the presence of an external guiding field and a vectorial coupling between the mechanical degrees of freedom and a chemical reaction. To characterize the ability of guided active particles to carry cargo, we generalize the notion of Stokes efficiency extending it to the case of stall conditions. To show the generality of the proposed mechanism, we discuss guided electric circuits capable of turning fluctuations into a directed current without a source of voltage.

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