Nonreciprocal forces enable cold-to-hot heat transfer between nanoparticles.

ABSTRACT: We study the heat transfer between two nanoparticles held at different temperatures that interact through nonreciprocal forces, by combining molecular dynamics simulations with stochastic thermodynamics. Our simulations reveal that it is possible to construct nano refrigerators that generate a net heat transfer from a cold to a hot reservoir at the expense of power exerted by the nonreciprocal forces. Applying concepts from stochastic thermodynamics to a minimal underdamped Langevin model, we derive exact analytical expressions predictions for the fluctuations of work, heat, and efficiency, which reproduce thermodynamic quantities extracted from the molecular dynamics simulations. The theory only involves a single unknown parameter, namely an effective friction coefficient, which we estima

SUBMITTER: Loos SAM 

PROVIDER: S-EPMC10024720 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature