Long-distance coherent tunneling effect on the charge and heat currents in serially coupled triple quantum dots

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Title:	Long-distance coherent tunneling effect on the charge and heat currents in serially coupled triple quantum dots
Authors:	郭明庭;Kuo, David M. T.;Chang, Yia-chung
Contributors:	資訊電機學院電機工程學系
Keywords:	Charge;Coherence;Condensed matter;Joining;Mathematical models;Quantum dots;Semiconductors;Tunneling
Date:	2014-03-14
Issue Date:	2026-04-23 14:21:41 (UTC+8)
Publisher:	American Physical Society
Abstract:	摘要： The effect of long-distance coherent tunneling (LDCT) on the charge and heat currents in serially coupled triple quantum dots (TQDs) connected to electrodes is illustrated by using a combination of the extended Hurbbard and Anderson models. The charge and heat currents are calculated with a closed-form Landauer expression for the transmission coefficient suitable for the Coulomb blockade regime. The physical parameters including bias-dependent quantum dot energy levels, electron Coulomb interactions, and electron hopping strengths are calculated in the framework of effective mass theory for semiconductor TQDs. We demonstrate that the effect of LDCT on the charge and heat currents can be robust. In addition, it is shown that prominent heat rectification behavior can exist in the TQD system with asymmetrical energy levels. 出版日期： 2014-03-14 出處： Physical review. B, Condensed matter and materials physics, 2014-03, Vol.89 (11), Article 115416 識別號： ISSN: 1098-0121 識別號： EISSN: 1550-235X 識別號： DOI: 10.1103/PhysRevB.89.115416
Appears in Collections:	[Department of Electrical Engineering] journal & Dissertation

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