Radiative cooling induced by time-symmetry breaking in periodically driven systems

  title={Radiative cooling induced by time-symmetry breaking in periodically driven systems},
  author={Riccardo Messina and Annika Ott and Christoph Kathmann and Svend-Age Biehs and Philippe Ben-Abdallah},
  journal={Physical Review B},
We theoretically study the thermal relaxation of many-body systems under the action of oscillating external fields. When the magnitude or the orientation of a field is modulated around values where the pairwise heat-exchange conductances depend non-linearly on this field, we demonstrate that the time symmetry is broken during the evolution of temperatures over a modulation cycle. We predict that this asymmetry enables a pumping of heat which can be used to cool down faster the system. This… 
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