Logical quantum processor based on reconfigurable atom arrays

D Bluvstein, SJ Evered, AA Geim, SH Li, H Zhou… - Nature, 2024 - nature.com
Suppressing errors is the central challenge for useful quantum computing, requiring
quantum error correction (QEC),,,–for large-scale processing. However, the overhead in the …

A race-track trapped-ion quantum processor

SA Moses, CH Baldwin, MS Allman, R Ancona… - Physical Review X, 2023 - APS
We describe and benchmark a new quantum charge-coupled device (QCCD) trapped-ion
quantum computer based on a linear trap with periodic boundary conditions, which …

Evidence of scaling advantage for the quantum approximate optimization algorithm on a classically intractable problem

R Shaydulin, C Li, S Chakrabarti, M DeCross… - Science …, 2024 - science.org
The quantum approximate optimization algorithm (QAOA) is a leading candidate algorithm
for solving optimization problems on quantum computers. However, the potential of QAOA to …

Correlated decoding of logical algorithms with transversal gates

M Cain, C Zhao, H Zhou, N Meister, JPB Ataides… - Physical Review Letters, 2024 - APS
Quantum error correction is believed to be essential for scalable quantum computation, but
its implementation is challenging due to its considerable space-time overhead. Motivated by …

High-performance fault-tolerant quantum computing with many-hypercube codes

H Goto - Science Advances, 2024 - science.org
Standard approaches to quantum error correction for fault-tolerant quantum computing are
based on encoding a single logical qubit into many physical ones, resulting in asymptotically …

Demonstrating Bayesian quantum phase estimation with quantum error detection

K Yamamoto, S Duffield, Y Kikuchi… - Physical Review …, 2024 - APS
Quantum phase estimation (QPE) serves as a building block of many different quantum
algorithms and finds important applications in computational chemistry problems. Despite …

Realization of quantum signal processing on a noisy quantum computer

Y Kikuchi, C Mc Keever, L Coopmans… - npj Quantum …, 2023 - nature.com
Quantum signal processing (QSP) is a powerful toolbox for the design of quantum
algorithms and can lead to asymptotically optimal computational costs. Its realization on …

Large-scale quantum reservoir learning with an analog quantum computer

M Kornjača, HY Hu, C Zhao, J Wurtz… - arxiv preprint arxiv …, 2024 - arxiv.org
Quantum machine learning has gained considerable attention as quantum technology
advances, presenting a promising approach for efficiently learning complex data patterns …

Demonstration of quantum computation and error correction with a tesseract code

BW Reichardt, D Aasen, R Chao… - arxiv preprint arxiv …, 2024 - arxiv.org
A critical milestone for quantum computers is to demonstrate fault-tolerant computation that
outperforms computation on physical qubits. The tesseract subsystem color code protects …

A model of randomly-coupled Pauli spins

M Hanada, A Jevicki, X Liu, E Rinaldi… - Journal of High Energy …, 2024 - Springer
A bstract We construct a model of Pauli spin operators with all-to-all 4-local interactions by
replacing Majorana fermions in the SYK model with spin operators. Equivalently, we replace …