Rectification of energy and motion in non-equilibrium parity violating metamaterials

Abstract

Uncovering new mechanisms for rectification of stochastic fluctuations has been a longstanding problem in non-equilibrium statistical mechanics. Here, using a model parity violating metamaterial that is allowed to interact with a bath of active energy consuming particles, we uncover new mechanisms for rectification of energy and motion. Our model active metamaterial can generate energy flows through an object in the absence of any temperature gradient. The nonreciprocal microscopic fluctuations responsible for generating the energy flows can further be used to power locomotion in, or exert forces on, a viscous fluid. Taken together, our analytical and numerical results elucidate how the geometry and inter-particle interactions of the parity violating material can couple with the non-equilibrium fluctuations of an active bath and enable rectification of energy and motion.

arXiv comment9 Pages + SI

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• Near field propulsion forces from nonreciprocal media
• Lift force in odd compressible fluids
• Rectification in Nonequilibrium Steady States of Open Many-Body Systems
• Probe particles in odd active viscoelastic fluids: how activity and dissipation determine linear stability
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• Thermodynamic uncertainty relation in the overdamped limit with a magnetic Lorentz force