Active Refrigerators Powered by Inertia

Abstract

We present the operational principle for a refrigerator which uses inertial effects in active Brownian particles to locally reduce their (kinetic) temperature by two orders of magnitude below the environmental temperature. This principle exploits the peculiar but so-far unknown shape of the phase diagram of inertial active Brownian particles to initiate motility-induced phase separation in the targeted cooling regime only. Remarkably, active refrigerators operate without requiring isolating walls opening the route towards using them to systematically absorb and trap, e.g., toxic substances from the environment.

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Cited by in corpus (12)

• Dynamics of active particles with translational and rotational inertia
• How to define temperature in active systems?
• Exact moments and re-entrant transitions in the inertial dynamics of active Brownian particles
• Roadmap for Animate Matter
• Motility-induced coexistence of a hot liquid and a cold gas
• Non-equilibrium coexistence between a fluid and a hotter or colder crystal of granular hard disks
• Inhomogeneous entropy production in active crystals with point imperfections
• When does an active bath behave as an equilibrium one?
• AMEP: The Active Matter Evaluation Package for Python
• Theory for the Anomalous Phase Behavior of Inertial Active Brownian Particles
• Inertia-chirality interplay in active Brownian motion: exact dynamics and phase maps
• Active adaptolates: motility-induced percolating structures with an adaptive packing geometry