Dynamical Localization in an Asymmetric Two-Electron Quantum Dot Molecule by an Alternating-Current Electric Field
LIU Yu-Shen1,2 , CHEN Hao2
1 Surface Physics Laboratory (National Key Laboratory), Fudan University, Shanghai 200433
2 Department of Physics, Fudan University, Shanghai 200433
Dynamical Localization in an Asymmetric Two-Electron Quantum Dot Molecule by an Alternating-Current Electric Field
LIU Yu-Shen1,2 ;CHEN Hao2
1 Surface Physics Laboratory (National Key Laboratory), Fudan University, Shanghai 200433
2 Department of Physics, Fudan University, Shanghai 200433
关键词 ：
73.23.-b ,
73.21.La ,
33.80.Be
Abstract ： We investigate the dynamics of two interacting electrons in an asymmetric double coupled quantum dot under an ac electric field. The numerical results demonstrate that dynamical localization and Rabi oscillation still exist in such a system under the stronger electron correlation. The two electrons can be regarded as a quasiparticle, which move together between two dots similarly to a boson. The dynamics of two electrons in such a quantum system are mainly confined in a Q subspace, which is constructed by two double-occupied states.
Key words ：
73.23.-b
73.21.La
33.80.Be
出版日期: 2004-05-01
:
73.23.-b
(Electronic transport in mesoscopic systems)
73.21.La
(Quantum dots)
33.80.Be
(Level crossing and optical pumping)
引用本文:
LIU Yu-Shen;CHEN Hao. Dynamical Localization in an Asymmetric Two-Electron Quantum Dot Molecule by an Alternating-Current Electric Field[J]. 中国物理快报, 2004, 21(5): 923-926.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2004/V21/I5/923
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2004, Vol. 21 
