Quantum computing for high-energy physics: State of the art and challenges

A Di Meglio, K Jansen, I Tavernelli, C Alexandrou… - PRX Quantum, 2024 - APS
Quantum computers offer an intriguing path for a paradigmatic change of computing in the
natural sciences and beyond, with the potential for achieving a so-called quantum …

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 …

Evidence for the utility of quantum computing before fault tolerance

Y Kim, A Eddins, S Anand, KX Wei, E Van Den Berg… - Nature, 2023 - nature.com
Quantum computing promises to offer substantial speed-ups over its classical counterpart for
certain problems. However, the greatest impediment to realizing its full potential is noise that …

High-threshold and low-overhead fault-tolerant quantum memory

S Bravyi, AW Cross, JM Gambetta, D Maslov, P Rall… - Nature, 2024 - nature.com
The accumulation of physical errors,–prevents the execution of large-scale algorithms in
current quantum computers. Quantum error correction promises a solution by encoding k …

Fluxonium: an alternative qubit platform for high-fidelity operations

F Bao, H Deng, D Ding, R Gao, X Gao, C Huang… - Physical review …, 2022 - APS
Superconducting qubits provide a promising path toward building large-scale quantum
computers. The simple and robust transmon qubit has been the leading platform, achieving …

Demonstration of a High-Fidelity cnot Gate for Fixed-Frequency Transmons with Engineered Suppression

A Kandala, KX Wei, S Srinivasan, E Magesan… - Physical Review Letters, 2021 - APS
Improving two-qubit gate performance and suppressing cross talk are major, but often
competing, challenges to achieving scalable quantum computation. In particular, increasing …

Reducing leakage of single-qubit gates for superconducting quantum processors using analytical control pulse envelopes

E Hyyppä, A Vepsäläinen, M Papič, CF Chan, S Inel… - PRX Quantum, 2024 - APS
Improving the speed and fidelity of quantum logic gates is essential to reach quantum
advantage with future quantum computers. However, fast logic gates lead to increased …

Hamiltonian engineering with multicolor drives for fast entangling gates and quantum crosstalk cancellation

KX Wei, E Magesan, I Lauer, S Srinivasan… - Physical Review Letters, 2022 - APS
Quantum computers built with superconducting artificial atoms already stretch the limits of
their classical counterparts. While the lowest energy states of these artificial atoms serve as …

Quantum crosstalk analysis for simultaneous gate operations on superconducting qubits

P Zhao, K Linghu, Z Li, P Xu, R Wang, G Xue, Y **… - PRX quantum, 2022 - APS
Maintaining or even improving gate performance with growing numbers of parallel
controlled qubits is a vital requirement for fault-tolerant quantum computing. For …

Long-Distance Transmon Coupler with cz-Gate Fidelity above

F Marxer, A Vepsäläinen, SW Jolin, J Tuorila, A Landra… - PRX Quantum, 2023 - APS
Tunable coupling of superconducting qubits has been widely studied due to its importance
for isolated gate operations in scalable quantum processor architectures. Here, we …