Photon-Assisted Electronic Transport Through an Asymmetrically Coupled Triple-Quantum Dot Interferometer


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Abstract

We present theoretically the quantum electronic transport through an interferometer asymmetrically coupled with triple quantum dots. Using the Keldysh non-equilibrium Green’s function method, the photon-assisted transport properties through the asymmetric quantum system are numerically analyzed. The sidebands of the photon-assisted tunneling process appear when driven by the time-modulated field. The average current spectra are simulated as a function of quantum dot energy to understand the roles of side-coupling strength and time-modulated field in sideband effect and electron tunneling. This is helpful in future design of the basic structures required for quantum computation applications.

About the authors

Zelong He

School of Electronic and Information Engineering, Yangtze Normal University

Email: lylee_heu@hrbeu.edu.cn
China, Chongqing, 408003

Jiyuan Bai

Key Laboratory of In-fiber Integrated Optics of Ministry of Education, College of Science, Harbin Engineering University; School of Electrical and Information Engineering, Heilongjiang Institute of Technology

Email: lylee_heu@hrbeu.edu.cn
China, Harbin, 150001; Harbin, 150050

Li Li

Key Laboratory of In-fiber Integrated Optics of Ministry of Education, College of Science, Harbin Engineering University

Author for correspondence.
Email: lylee_heu@hrbeu.edu.cn
China, Harbin, 150001

Qingshuang Zhi

School of Electronic and Information Engineering, Yangtze Normal University

Email: lylee_heu@hrbeu.edu.cn
China, Chongqing, 408003

Weimin Sun

Key Laboratory of In-fiber Integrated Optics of Ministry of Education, College of Science, Harbin Engineering University

Email: lylee_heu@hrbeu.edu.cn
China, Harbin, 150001

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