Engineering high-coherence superconducting qubits

I Siddiqi - Nature Reviews Materials, 2021 - nature.com
Advances in materials science and engineering have played a central role in the
development of classical computers and will undoubtedly be critical in propelling the …

1/f noise: Implications for solid-state quantum information

E Paladino, YM Galperin, G Falci, BL Altshuler - Reviews of Modern Physics, 2014 - APS
The efficiency of the future devices for quantum information processing is limited mostly by
the finite decoherence rates of the individual qubits and quantum gates. Recently …

[HTML][HTML] A quantum engineer's guide to superconducting qubits

P Krantz, M Kjaergaard, F Yan, TP Orlando… - Applied physics …, 2019 - pubs.aip.org
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 …

Resolving catastrophic error bursts from cosmic rays in large arrays of superconducting qubits

M McEwen, L Faoro, K Arya, A Dunsworth, T Huang… - Nature Physics, 2022 - nature.com
Scalable quantum computing can become a reality with error correction, provided that
coherent qubits can be constructed in large arrays,. The key premise is that physical errors …

Engineering cryogenic setups for 100-qubit scale superconducting circuit systems

S Krinner, S Storz, P Kurpiers, P Magnard… - EPJ Quantum …, 2019 - epjqt.epj.org
A robust cryogenic infrastructure in form of a wired, thermally optimized dilution refrigerator
is essential for solid-state based quantum processors. Here, we engineer a cryogenic setup …

The flux qubit revisited to enhance coherence and reproducibility

F Yan, S Gustavsson, A Kamal, J Birenbaum… - Nature …, 2016 - nature.com
The scalable application of quantum information science will stand on reproducible and
controllable high-coherence quantum bits (qubits). Here, we revisit the design and …

High fidelity two-qubit gates on fluxoniums using a tunable coupler

IN Moskalenko, IA Simakov, NN Abramov… - npj Quantum …, 2022 - nature.com
Superconducting fluxonium qubits provide a promising alternative to transmons on the path
toward large-scale superconductor-based quantum computing due to their better coherence …

Resisting high-energy impact events through gap engineering in superconducting qubit arrays

M McEwen, KC Miao, J Atalaya, A Bilmes, A Crook… - Physical Review Letters, 2024 - APS
Quantum error correction (QEC) provides a practical path to fault-tolerant quantum
computing through scaling to large qubit numbers, assuming that physical errors are …

Observation of High Coherence in Josephson Junction Qubits Measured<? format?> in a Three-Dimensional Circuit QED Architecture

H Paik, DI Schuster, LS Bishop, G Kirchmair… - Physical review …, 2011 - APS
Superconducting quantum circuits based on Josephson junctions have made rapid progress
in demonstrating quantum behavior and scalability. However, the future prospects ultimately …

High-coherence fluxonium qubit

LB Nguyen, YH Lin, A Somoroff, R Mencia, N Grabon… - Physical Review X, 2019 - APS
We report superconducting fluxonium qubits with coherence times largely limited by energy
relaxation and reproducibly satisfying T 2> 100 μ s (T 2> 400 μ s in one device). Moreover …