Noisy intermediate-scale quantum computers

B Cheng, XH Deng, X Gu, Y He, G Hu, P Huang, J Li… - Frontiers of …, 2023 - Springer
Quantum computers have made extraordinary progress over the past decade, and
significant milestones have been achieved along the path of pursuing universal fault-tolerant …

Materials loss measurements using superconducting microwave resonators

CRH McRae, H Wang, J Gao, MR Vissers… - Review of Scientific …, 2020 - pubs.aip.org
The performance of superconducting circuits for quantum computing is limited by materials
losses. In particular, coherence times are typically bounded by two-level system (TLS) …

Strong quantum computational advantage using a superconducting quantum processor

Y Wu, WS Bao, S Cao, F Chen, MC Chen, X Chen… - Physical review …, 2021 - APS
Scaling up to a large number of qubits with high-precision control is essential in the
demonstrations of quantum computational advantage to exponentially outpace the classical …

Quantum supremacy using a programmable superconducting processor

F Arute, K Arya, R Babbush, D Bacon, JC Bardin… - Nature, 2019 - nature.com
The promise of quantum computers is that certain computational tasks might be executed
exponentially faster on a quantum processor than on a classical processor 1. A fundamental …

[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 …

Quantum walks on a programmable two-dimensional 62-qubit superconducting processor

M Gong, S Wang, C Zha, MC Chen, HL Huang, Y Wu… - Science, 2021 - science.org
Quantum walks are the quantum mechanical analog of classical random walks and an
extremely powerful tool in quantum simulations, quantum search algorithms, and even for …

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 …

A superconducting quantum simulator based on a photonic-bandgap metamaterial

X Zhang, E Kim, DK Mark, S Choi, O Painter - Science, 2023 - science.org
Synthesizing many-body quantum systems with various ranges of interactions facilitates the
study of quantum chaotic dynamics. Such extended interaction range can be enabled by …

Topological and subsystem codes on low-degree graphs with flag qubits

C Chamberland, G Zhu, TJ Yoder, JB Hertzberg… - Physical Review X, 2020 - APS
In this work we introduce two code families, which we call the heavy-hexagon code and the
heavy-square code. Both code families are implemented by assigning physical data and …

Microwave quantum link between superconducting circuits housed in spatially separated cryogenic systems

P Magnard, S Storz, P Kurpiers, J Schär, F Marxer… - Physical Review Letters, 2020 - APS
Superconducting circuits are a strong contender for realizing quantum computing systems
and are also successfully used to study quantum optics and hybrid quantum systems …