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QUANTUM COMPUTATION

Gatemons get serious

Nature Nanotechnology volume 13, pages 877–878 (2018)Cite this article

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The top-down fabrication of voltage-controlled superconducting qubits brings upscaling into reach.

What type of technology will form the backbone of tomorrow’s quantum computers? The answer to this question has evolved over the past three decades, as a number of candidate systems including trapped ions, superconducting circuits, gated semiconductor devices, and crystal defects in diamond have competed to be the most viable solution. Today, the most promising technologies have moved beyond the initial phases of scientific discovery and small-scale benchmarking and into the realm of coordinated engineering efforts. However, scaling up fragile quantum devices is far from trivial, and the qubits that perform best now may not necessarily scale efficiently. Writing in Nature Nanotechnology, Lucas Casparis et al.1 now demonstrate a new approach to implementing the gatemon2,3, a promising hybrid semiconductor–superconductor qubit, in a significantly more robust and scalable manner than was previously possible.

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Fig. 1: Transmon and gatemon qubits.

References

  1. Casparis, L. et al. Nat. Nanotech. S41565-018-0207-y (2018).

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  1. MIT Lincoln Laboratory, Lexington, MA, USA

    Steven J. Weber

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  1. Steven J. Weber
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Correspondence to Steven J. Weber.

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Weber, S.J. Gatemons get serious. Nature Nanotech 13, 877–878 (2018). https://doi.org/10.1038/s41565-018-0218-8

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