IONQForte+36.AQ.LiveIBM.QCondor+1121.QubitsQNTNMHelios+48.LogQubitsPSIQNTMPhotonic+$1B.SeriesERGTIAnkaa-3+99.5%.FidelQBTSAdv2+5000.QubitsQUERAAquila+256.QubitsSNDX.AQAQ+AI+$500M.SerEPASQLNeutral+EUR152M.SerBXNDUBorealis+SPAC.$302MINFLQColdAtom+SPAC.$540MFUND.YTD2025-26$6.2B.Raised
commercialtrapped-ion

H1-1

Approach
trapped-ion
Qubit Count
20
Logical Qubits
null
Quantum Volume
524,288
1Q Gate Fidelity
99.99%
2Q Gate Fidelity
99.8%
Coherence Time
>10 s
Gate Speed
~200 µs (two-qubit)
Connectivity
All-to-all (QCCD architecture)
Operating Temp
Room temp (vacuum ion trap)
Cloud Access
Quantinuum / Azure Quantum
Year
2021
Status
COMMERCIAL
About

Quantinuum's H1-1 is a 20-qubit trapped-ion system using the QCCD (quantum charge-coupled device) architecture. With all-to-all connectivity and the highest recorded Quantum Volume of any commercial system, H1 demonstrates the fidelity advantages of trapped-ion approaches.

Quantinuum — Funding Summary