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

Yanchao Zhang and Shanhe Su

Physica A: Statistical Mechanics and its Applications, 2021, vol. 584, issue C

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.

Keywords: Thermal rectification; Negative differential thermal conductance; Double quantum-dot; Coulomb blockade regime (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:584:y:2021:i:c:s0378437121006208

DOI: 10.1016/j.physa.2021.126347

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