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arXiv · 1905.05111

Shuttling of Rydberg ions for fast entangling operations

Jonas Vogel·Weibin Li·Arezoo Mokhberi·Igor Lesanovsky·Ferdinand Schmidt-Kaler
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Abstract

We introduce a scheme to entangle Rydberg ions in a linear ion crystal, using the high electric polarizability of the Rydberg electronic states in combination with mutual Coulomb coupling of ions that establishes common modes of motion. After laser-initialization of ions to a superposition of ground- and Rydberg-state, the entanglement operation is driven purely by applying a voltage pulse that shuttles the ion crystal back and forth. This operation can achieve entanglement on a sub-$\mu$s timescale, more than two orders of magnitude faster than typical gate operations driven by continuous-wave lasers. Our analysis shows that the fidelity achieved with this protocol can exceed $99.9\%$ with experimentally achievable parameters.

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Jonas Vogel, Weibin Li, Arezoo Mokhberi, Igor Lesanovsky, Ferdinand Schmidt-Kaler. 2019-05-13. Shuttling of Rydberg ions for fast entangling operations. https://doi.org/10.1103/physrevlett.123.153603

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