Thermal rectification and negative differential thermal conductivity based on a parallel-coupled double quantum-dot

Yanchao Zhang; Shanhe Su

doi:10.1016/j.physa.2021.126347

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arXiv · 2007.04729

Thermal rectification and negative differential thermal conductivity based on a parallel-coupled double quantum-dot

Yanchao Zhang·Shanhe Su

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Abstract

We investigate the heat flow transport properties of a parallel-coupled double quantum-dot system connected to two reservoirs with a temperature bias in the Coulomb blockade regime. We demonstrate that the effects of thermal rectification and negative differential thermal conductance (NDTC) exist in this system and analyze the influences of energy level difference and Coulomb interaction on the thermal rectification and NDTC. We find that this system can achieve a high thermal rectification ratio and NDTC when the asymmetry factor of the system is enhanced.

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Yanchao Zhang, Shanhe Su. 2020-07-09. Thermal rectification and negative differential thermal conductivity based on a parallel-coupled double quantum-dot. https://doi.org/10.1016/j.physa.2021.126347

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