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Updated: Apr 27, 2026

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
Published on: March 30, 2017
Optimal rectification in the ultrastrong coupling regime
T Werlang1, M A Marchiori1, M F Cornelio1
1Instituto de Física, Universidade Federal de Mato Grosso, Cuiabá MT, Brazil.
Abstract:
We study the effect of ultrastrong coupling on the transport of heat. In particular, we present a condition for optimal rectification, i.e., flow of heat in one direction and complete isolation in the opposite direction. We show that the strong-coupling formalism is necessary for correctly describing heat flow in a wide range of parameters, including moderate to low couplings. We present a situation in which the strong-coupling formalism predicts optimal rectification whereas the phenomenological approach predicts no heat flow in any direction, for the same parameter values.
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