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5 papers · 2 filters
Quantum Entanglement of Excitons in Coupled Quantum Dots
Ping Zhang, C. K. Chan, Qi-Kun Xue +1
Optically-controlled exciton dynamics in coupled quantum dots is studied. We show that the maximally entangled Bell states and Greenberger-Horne-Zeilinger (GHZ) states can be robus…
Quantum control of two interacting electrons in a coupled quantum dot
Ping Zhang, Xian-Geng Zhao
Quantum-state engineering, i.e., active manipulation over the coherent dynamics of suitable quantum-mechanical systems, has become a fascinating prospect of modern physics. Here we…
Dynamics of a two-component atomic Bose-Einstein condensate
Ping Zhang, C. K. Chan, Xiang-Gui Li +1
The dynamical population oscillations between two internal states of a Bose-Einstein condensate are investigated within the rotating wave approximation. Analytical expressions for…
Dynamics of spin-2 Bose condensate driven by external magnetic fields
Ping Zhang, C. K. Chan, Xiang-Gui Li +2
Dynamic response of the F=2 spinor Bose-Einstein condensate (BEC) under the influence of external magnetic fields is studied. A general formula is given for the oscillation period…
Coulomb-enhanced dynamic localization and Bell state generation in coupled quantum dots
Ping Zhang, Qi-Kun Xue, Xian-Geng Zhao +1
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 f…