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Records
The best published figure for each measure, over time: each record with the paper or release that reports it, the lab, the date and the method. Only like is compared with like.
The best published figure for each measure, over time: each record with the paper or release that reports it, the lab, the date and the method. Only like is compared with like.
- 24 entangled logical qubits on a neutral-atom processor
Logical qubits entangled · 24 logical qubits · 18 November 2024
- Color code memory below threshold (distance 7)
Logical error rate · 16 October 2026
- Fluxonium CNOT gate by selective darkening
22 July 2024
- Helios logical qubits entangled (error detected)
Logical qubits entangled · 94 LQ · 5 November 2025
- Helios two-qubit gate fidelity
Two-qubit gate fidelity · 99.921 % · 5 November 2025
- Hyperfine qubit coherence in a tweezer array
Coherence time · 12.6 seconds · 18 March 2024
- Ionized phosphorus nuclear spin coherence in silicon
Coherence time
- Logical quantum processor with 48 entangled logical qubits
6 December 2023
- Silicon spin two-qubit gate above the fault-tolerance threshold
Two-qubit gate fidelity
- Single ytterbium ion-qubit coherence beyond one hour
Coherence time · 1 August 2020
- Sqale 30 entangled logical qubits
Logical qubits entangled · 30 · 24 September 2026
- Surface code memory below threshold (distance 7)
Logical error rate · 0.143 % · 24 August 2024
- Tantalum-on-silicon 2D transmon lifetime
Coherence time · 1.68 ms · 19 March 2025
- Time-optimal Rydberg CZ gate in a neutral-atom array
Two-qubit gate fidelity · 0.9971 · 29 July 2024
- Trapped-ion smooth gate without ground-state cooling
20 October 2025
- Tweezer array with 6100 atomic qubits
Physical qubits in one system · 6,100 qubits · 18 March 2024