A compact neutral-atom fault-tolerant quantum computer based on new quantum codes | Nature Physics

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.

A practical and hardware-efficient blueprint for fault-tolerant quantum computing has been developed, using quantum low-density-parity-check codes and reconfigurable neutral-atom arrays. The scheme requires ten times fewer qubits and paves the way towards large-scale quantum computing using existing experimental technologies.

Prices may be subject to local taxes which are calculated during checkout

Gidney, C. & Ekera, M. How to factor 2048 bit RSA integers in 8 hours using 20 million noisy qubits. Quantum 5, 433 (2021). This paper reports the resource overhead of fault-tolerant quantum computation using surface codes.

Breuckmann, N. P. & Eberhardt, J. N. Quantum low-density parity-check codes. PRX Quantum 2, 040101 (2021). A review article that presents the development of qLDPC codes.

Gottesman, D. Fault-tolerant quantum computation with constant overhead. Quantum Info. Comput. 14, 1338–1372 (2014). This paper reports how to achieve fault-tolerant quantum computing with constant overhead using qLDPC codes.

Tremblay, M. A., Delfosse, N. & Beverland, M. E. Constant-overhead quantum error correction with thin planar connectivity. Phys. Rev. Lett. 129, 050504 (2022). This paper presents methods for implementing qLDPC codes and circuit-level simulations.


Google Scholar

Bluvstein, D. et al. Logical quantum processor based on reconfigurable atom arrays. Nature 626, 58–65 (2024). This paper reports the development of reconfigurable atom arrays with long-range qubit connectivity, and the implementation of logical qubit algorithms using these capabilities.

Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

This is a summary of: Xu, Q. et al. Constant-overhead fault-tolerant quantum computation with reconfigurable atom arrays. Nat. Phys. https://doi.org/10.1038/s41567-024-02479-z (2024)

A compact neutral-atom fault-tolerant quantum computer based on new quantum codes.
Nat. Phys. (2024). https://doi.org/10.1038/s41567-024-02480-6

Anyone you share the following link with will be able to read this content:

Nature Physics (Nat. Phys.)

ISSN 1745-2481 (online)

ISSN 1745-2473 (print)

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.