Moscow University Physics Bulletin

, Volume 73, Issue 5, pp 486–492 | Cite as

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

  • Zelong He
  • Jiyuan Bai
  • Li LiEmail author
  • Qingshuang Zhi
  • Weimin Sun


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.


photon-assisted nonequilibrium Green’s function quantum dot electron transport 



Project supported by the National Natural Science Foundation of China (Grant no. 11447132), Natural Science Foundation of Heilongjiang (A201405), 111 Project (B13015) to Harbin Engineering University, the key lab program of MOE, the Fundamental Research Funds for the Central Universities, and Chongqing Education Commission Science and Technology Project no. KJQN201801402.


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Copyright information

© Allerton Press, Inc. 2018

Authors and Affiliations

  • Zelong He
    • 1
  • Jiyuan Bai
    • 2
    • 3
  • Li Li
    • 2
    Email author
  • Qingshuang Zhi
    • 1
  • Weimin Sun
    • 2
  1. 1.School of Electronic and Information Engineering, Yangtze Normal UniversityChongqingChina
  2. 2.Key Laboratory of In-fiber Integrated Optics of Ministry of Education, College of Science, Harbin Engineering UniversityHarbinChina
  3. 3.School of Electrical and Information Engineering, Heilongjiang Institute of TechnologyHarbinChina

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