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RYDBERG ATOMS

A boost to Rydberg quantum computing

Nature Physics volume 16, pages 820–821 (2020)Cite this article

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Systems of neutral atoms are gradually gaining currency as a promising candidate for realizing large-scale quantum computing. The achievement of a record-high fidelity in quantum operation with alkaline-earth Rydberg atoms is a case in point.

Quantum computing recently attracted a tremendous amount of attention. While the platforms that have claimed the early headlines are trapped ions and superconducting qubits, other physical systems, such as neutral atoms, also remain viable as candidates for realizing scalable universal quantum computers. Writing in Nature Physics, Ivaylo S. Madjarov and colleagues have now demonstrated single- and two-qubit operation fidelities higher than 0.99 on a platform of reconfigurable arrays of strontium Rydberg atoms1. This result is competitive with fidelities achieved with trapped ions (>0.999) and superconducting qubits (>0.99), and potentially opens a new chapter in quantum computing based on neutral atoms.

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Fig. 1: Entanglement and detection of strontium Rydberg qubits in a reconfigurable tweezer array.

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Authors and Affiliations

  1. Centre for Quantum Technologies, National University of Singapore, Singapore, Singapore

    Wenhui Li

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  1. Wenhui Li
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Correspondence to Wenhui Li.

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Li, W. A boost to Rydberg quantum computing. Nat. Phys. 16, 820–821 (2020). https://doi.org/10.1038/s41567-020-0907-8

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  • DOI: https://doi.org/10.1038/s41567-020-0907-8

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