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 …

Constant-overhead fault-tolerant quantum computation with reconfigurable atom arrays

Q Xu, JP Bonilla Ataides, CA Pattison, N Raveendran… - Nature Physics, 2024 - nature.com
Quantum low-density parity-check (qLDPC) codes can achieve high encoding rates and
good code distance scaling, potentially enabling low-overhead fault-tolerant quantum …

Encoding a magic state with beyond break-even fidelity

RS Gupta, N Sundaresan, T Alexander, CJ Wood… - Nature, 2024 - nature.com
To run large-scale algorithms on a quantum computer, error-correcting codes must be able
to perform a fundamental set of operations, called logic gates, while isolating the encoded …

Quantum-enabled millimetre wave to optical transduction using neutral atoms

A Kumar, A Suleymanzade, M Stone, L Taneja… - Nature, 2023 - nature.com
Early experiments with transiting circular Rydberg atoms in a superconducting resonator laid
the foundations of modern cavity and circuit quantum electrodynamics, and helped explore …

Ideal refocusing of an optically active spin qubit under strong hyperfine interactions

L Zaporski, N Shofer, JH Bodey, S Manna… - Nature …, 2023 - nature.com
Combining highly coherent spin control with efficient light-matter coupling offers great
opportunities for quantum communication and computing. Optically active semiconductor …

HASM quantum machine learning

T Yue, C Wu, Y Liu, Z Du, N Zhao, Y Jiao, Z Xu… - Science China Earth …, 2023 - Springer
The miniaturization of transistors led to advances in computers mainly to speed up their
computation. Such miniaturization has approached its fundamental limits. However, many …

Entangling four logical qubits beyond break-even in a nonlocal code

Y Hong, E Durso-Sabina, D Hayes, A Lucas - Physical Review Letters, 2024 - APS
Quantum error correction protects logical quantum information against environmental
decoherence by encoding logical qubits into entangled states of physical qubits. One of the …

Logical blocks for fault-tolerant topological quantum computation

H Bombin, C Dawson, RV Mishmash, N Nickerson… - PRX Quantum, 2023 - APS
Logical gates constitute the building blocks of fault-tolerant quantum computation. While
quantum error-corrected memories have been extensively studied in the literature, explicit …

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 …

Constant-overhead quantum error correction with thin planar connectivity

MA Tremblay, N Delfosse, ME Beverland - Physical Review Letters, 2022 - APS
Quantum low density parity check (LDPC) codes may provide a path to build low-overhead
fault-tolerant quantum computers. However, as general LDPC codes lack geometric …