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Superconducting Qubits: Current State of Play
Annual Review of Condensed Matter Physics ( IF 22.6 ) Pub Date : 2020-03-16 , DOI: 10.1146/annurev-conmatphys-031119-050605
Morten Kjaergaard 1 , Mollie E. Schwartz 2 , Jochen Braumüller 1 , Philip Krantz 3 , Joel I.-J. Wang 1 , Simon Gustavsson 1 , William D. Oliver 1, 2, 4
Affiliation  

Superconducting qubits are leading candidates in the race to build a quantum computer capable of realizing computations beyond the reach of modern supercomputers. The superconducting qubit modality has been used to demonstrate prototype algorithms in the noisy intermediate-scale quantum (NISQ) technology era, in which non-error-corrected qubits are used to implement quantum simulations and quantum algorithms. With the recent demonstrations of multiple high-fidelity, two-qubit gates as well as operations on logical qubits in extensible superconducting qubit systems, this modality also holds promise for the longer-term goal of building larger-scale error-corrected quantum computers. In this brief review, we discuss several of the recent experimental advances in qubit hardware, gate implementations, readout capabilities, early NISQ algorithm implementations, and quantum error correction using superconducting qubits. Although continued work on many aspects of this technology is certainly necessary, the pace of both conceptual and technical progress in recent years has been impressive, and here we hope to convey the excitement stemming from this progress.

中文翻译:


超导量子位:当前运行状态

超导量子位是构建量子计算机的竞赛的领先者,该量子计算机能够实现现代超级计算机无法实现的计算。超导量子位模态已被用于证明在嘈杂的中级量子(NISQ)技术时代中的原型算法,在该时代中,使用非错误校正的量子位来实现量子模拟和量子算法。随着最近对多个高保真,两个量子比特门的演示以及在可扩展超导量子比特系统中对逻辑量子比特的操作的证明,这种模式也为建立大型纠错量子计算机的长期目标提供了希望。在这篇简短的评论中,我们讨论了qubit硬件,门实现,读出功能,早期的NISQ算法实现,以及使用超导量子位的量子误差校正。尽管在这项技术的许多方面进行持续的工作固然是必要的,但近年来在概念和技术上的进步都令人印象深刻,我们希望在此传达这种进步所带来的兴奋。

更新日期:2020-04-21
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