Generation and detection of a spin entanglement in nonequilibrium quantum dots
arXiv:0712.3016 · doi:10.1088/1367-2630/10/4/045016
Abstract
Spin entanglement between two spatially separated electrons can be generated in nonequilibrium interacting quantum dots, coherently coupled to a common lead. In this system entangled two-electron states develop which are Werner states with an imbalance between singlet and triplet probabilities. We propose a multi-terminal, multiply-connected setup for the generation and detection of this imbalance. In particular, we identify a regime in which the formation of spin entanglement leads to a cancellation of Aharonov-Bohm oscillations.
6 pages, 3 figures
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