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28 May 2022
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Coulomb-enhanced dynamic localization and Bell state generation in coupled quantum dots
Ping Zhang ; Qi-Kun Xue ; Xian-Geng Zhao ; X.C. Xie ;
Date 11 Oct 2002
Journal Phys. Rev. A 66 (2002) 022117
Subject Mesoscopic Systems and Quantum Hall Effect; Materials Science | cond-mat.mes-hall cond-mat.mtrl-sci
AbstractWe investigate the dynamics of two interacting electrons in coupled quantum dots driven by an AC field. We find that the two electrons can be trapped in one of the dots by the AC field, in spite of the strong Coulomb repulsion. In particular, we find that the interaction may enhance the localization effect. We also demonstrate the field excitation procedure to generate the maximally entangled Bell states. The generation time is determined by both analytic and numerical solutions of the time dependent Schrodinger equation.
Source arXiv, cond-mat/0210251
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