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Article Dans Une Revue Physical Review Letters Année : 2023

Control of Active Brownian Particles: An Exact Solution

Résumé

Control of stochastic systems is a challenging open problem in statistical physics, with potential applications in a wealth of systems from biology to granulates. Unlike most cases investigated so far, we aim here at controlling a genuinely out-of-equilibrium system, the two dimensional Active Brownian Particles model in a harmonic potential, a paradigm for the study of self-propelled bacteria. We search for protocols for the driving parameters (stiffness of the potential and activity of the particles) bringing the system from an initial passive-like stationary state to a final active-like one, within a chosen time interval. The exact analytical results found for this prototypical system of self-propelled particles brings control techniques to a wider class of out-of-equilibrium systems.

Dates et versions

hal-04273480 , version 1 (07-11-2023)

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Marco Baldovin, David Guéry-Odelin, Emmanuel Trizac. Control of Active Brownian Particles: An Exact Solution. Physical Review Letters, 2023, 131 (11), pp.118302. ⟨10.1103/PhysRevLett.131.118302⟩. ⟨hal-04273480⟩
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