Coulomb-coupled quantum-dot thermal transistors
Applied Physics
2018-11-29 v1 Mesoscale and Nanoscale Physics
Abstract
A quantum-dot thermal transistor consisting of three Coulomb-coupled quantum dots coupled to respective electronic reservoirs by tunnel contacts is established. The heat flows through the collector and emitter can be controlled by the temperature of the base. It is found that a small change in the base heat flow can induce a large heat flow change in the collector and emitter. The huge amplification factor can be obtained by optimizing the Coulomb interaction between the collector and the emitter or by decreasing the energy-dependent tunneling rate at the base. The proposed quantum-dot thermal transistor may open up potential applications in low-temperature solid-state thermal circuits at the nanoscale.
Cite
@article{arxiv.1712.06889,
title = {Coulomb-coupled quantum-dot thermal transistors},
author = {Yanchao Zhang and Zhimin Yang and Xin Zhang and Bihong Lin and Guoxing Lin and Jincan Chen},
journal= {arXiv preprint arXiv:1712.06889},
year = {2018}
}
Comments
14 pages, 6 figures