›› 2015, Vol. 24 ›› Issue (4): 47306-047306.doi: 10.1088/1674-1056/24/4/047306

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Two-electron localization in a quantum dot molecule driven by a cosine squared field

钟光辉a, 王立民b   

  1. a Department of Physics, Hebei Normal University, Shijiazhuang 050024, China;
    b Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
  • 收稿日期:2014-10-30 修回日期:2014-12-05 出版日期:2015-04-05 发布日期:2015-04-05
  • 基金资助:
    Project supported by the Natural Science Foundation of Hebei Province, China (Grant No. A201405104).

Two-electron localization in a quantum dot molecule driven by a cosine squared field

Zhong Guang-Hui (钟光辉)a, Wang Li-Min (王立民)b   

  1. a Department of Physics, Hebei Normal University, Shijiazhuang 050024, China;
    b Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
  • Received:2014-10-30 Revised:2014-12-05 Online:2015-04-05 Published:2015-04-05
  • Contact: Wang Li-Min E-mail:wanglm@iapcm.ac.cn
  • Supported by:
    Project supported by the Natural Science Foundation of Hebei Province, China (Grant No. A201405104).

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摘要： We investigate the dynamics of two interacting electrons confined in a quantum dot molecule under the influence of cosine squared electric fields. The conditions for two-electron localization in the same quantum dot are analytically derived within the frame of the Floquet formalism. The analytical results are compared to numerical results obtained from the solution of the time-dependent Schödinger equation.

关键词: dynamic localization, Floquet state, Bessel function

Abstract: We investigate the dynamics of two interacting electrons confined in a quantum dot molecule under the influence of cosine squared electric fields. The conditions for two-electron localization in the same quantum dot are analytically derived within the frame of the Floquet formalism. The analytical results are compared to numerical results obtained from the solution of the time-dependent Schödinger equation.

Key words: dynamic localization, Floquet state, Bessel function

中图分类号:  (Quantum dots)

  • 73.63.Kv
42.50.Hz (Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift) 73.23.Hk (Coulomb blockade; single-electron tunneling)