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arXiv · 0712.3016

Generation and detection of a spin entanglement in nonequilibrium quantum dots

Stefan Legel·Jürgen König·Gerd Schön
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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.

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Stefan Legel, Jürgen König, Gerd Schön. 2008-05-02. Generation and detection of a spin entanglement in nonequilibrium quantum dots. https://doi.org/10.1088/1367-2630%2F10%2F4%2F045016

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