Effect of Coulomb Interaction on Dynamical Localization in a Two-Electron Quantum-Dot Molecule
WANG Li-Min1, DUAN Su-Qing1, ZHAO Xian-Geng1, LIU Cheng-Shi2
1Institute of Applied Physics and Computational Mathematics, PO Box 8009(26), Beijing 100088
2Interdisciplinary Centre of Theoretical Studies, Chinese Academy of Sciences, Beijing 100080
Effect of Coulomb Interaction on Dynamical Localization in a Two-Electron Quantum-Dot Molecule
WANG Li-Min1;DUAN Su-Qing1;ZHAO Xian-Geng1;LIU Cheng-Shi2
1Institute of Applied Physics and Computational Mathematics, PO Box 8009(26), Beijing 100088
2Interdisciplinary Centre of Theoretical Studies, Chinese Academy of Sciences, Beijing 100080
Abstract： The combined interaction of Coulomb interaction and ac fields with two electrons in a quantum dot molecule is studied respectively with numerical simulation, perturbation theory and the approximation of driven two-level model. The dynamical localization occurs with the ac field whose ratio of the amplitude to the angular frequency is a root of n-order Bessel functions, where n is determined by the Coulomb interaction energy. Such results are explained with either the driven two-level approximation or the degenerated three-level model and verified by the numerical simulations.
(Quantum computation architectures and implementations)
引用本文:
WANG Li-Min;DUAN Su-Qing;ZHAO Xian-Geng;LIU Cheng-Shi. Effect of Coulomb Interaction on Dynamical Localization in a Two-Electron Quantum-Dot Molecule[J]. 中国物理快报, 2004, 21(10): 2033-2036.
WANG Li-Min, DUAN Su-Qing, ZHAO Xian-Geng, LIU Cheng-Shi. Effect of Coulomb Interaction on Dynamical Localization in a Two-Electron Quantum-Dot Molecule. Chin. Phys. Lett., 2004, 21(10): 2033-2036.
2004, Vol. 21 
