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

Abstract : 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 effect is illustrated through different magneto-optical systems under the action of an oscillating magnetic field.
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https://hal.archives-ouvertes.fr/hal-03372116
Contributor : Philippe Ben-Abdallah Connect in order to contact the contributor
Submitted on : Saturday, October 9, 2021 - 6:06:31 PM
Last modification on : Friday, October 15, 2021 - 9:13:52 AM

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Riccardo Messina, Annika Ott, Christoph Kathmann, Svend-Age Biehs, Philippe Ben-Abdallah. Radiative cooling induced by time-symmetry breaking in periodically driven systems. Physical Review B, American Physical Society, 2021, 103 (11), ⟨10.1103/PhysRevB.103.115440⟩. ⟨hal-03372116⟩

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