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Engineering Framework for Optimizing Superconducting Qubit Designs
Fei Yan, Youngkyu Sung, Philip Krantz +6
Superconducting quantum technologies require qubit systems whose properties meet several often conflicting requirements, such as long coherence times and high anharmonicity. Here,…
Spin wave based tunable switch between superconducting flux qubits
Shaojie Yuan, Chuanpu Liu, Jilei Chen +9
Quantum computing hardware has received world-wide attention and made considerable progress recently. YIG thin film have spin wave (magnon) modes with low dissipation and reliable…
Multi-level Quantum Noise Spectroscopy
Youngkyu Sung, Antti Vepsäläinen, Jochen Braumüller +14
System noise identification is crucial to the engineering of robust quantum systems. Although existing quantum noise spectroscopy (QNS) protocols measure an aggregate amount of noi…
A Quantum Engineer's Guide to Superconducting Qubits
Philip Krantz, Morten Kjaergaard, Fei Yan +3
The aim of this review is to provide quantum engineers with an introductory guide to the central concepts and challenges in the rapidly accelerating field of superconducting quantu…
Non-Gaussian noise spectroscopy with a superconducting qubit sensor
Youngkyu Sung, Félix Beaudoin, Leigh M. Norris +9
Accurate characterization of the noise influencing a quantum system of interest has far-reaching implications across quantum science, ranging from microscopic modeling of decoheren…
A tunable coupling scheme for implementing high-fidelity two-qubit gates
Fei Yan, Philip Krantz, Youngkyu Sung +6
The prospect of computational hardware with quantum advantage relies critically on the quality of quantum gate operations. Imperfect two-qubit gates is a major bottleneck for achie…