Coulomb-enhanced dynamic localization and Bell state generation in coupled quantum dots

Details Coulomb-enhanced dynamic localization and Bell state generation in coupled quantum dots Coulomb-enhanced dynamic localization and Bell state generation in coupled quantum dots

2002-10-11

arxiv.org/abs/cond-mat/0210251v1

Phys. Rev. A 66 (2002) 022117

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

12 pages, 5 figures

Scientific paper

10.1103/PhysRevA.66.022117

We 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.

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