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arXiv · 1410.3372

Entanglement of neutral-atom chains by spin-exchange Rydberg interaction

Xiao-Feng Shi·F. Bariani·T. A. B. Kennedy
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Abstract

Conditions to achieve an unusually strong Rydberg spin-exchange interaction are investigated and proposed as a means to generate pairwise entanglement and realize a SWAP-like quantum gate for neutral atoms. Ground-state entanglement is created by mapping entangled Rydberg states to ground states using optical techniques. A protocol involving SWAP gate and pairwise entanglement operations is predicted to create global entanglement of a chain of $N$ atoms in a time that is independent of $N$.

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Xiao-Feng Shi, F. Bariani, T. A. B. Kennedy. 2014-12-09. Entanglement of neutral-atom chains by spin-exchange Rydberg interaction. https://doi.org/10.1103/physreva.90.062327

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