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.
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References
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.
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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)
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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
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DOI: https://doi.org/10.1038/s41567-024-02480-6
