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Trapped ions
Electromagnetically trapped charged atoms controlled with lasers.
Sự đánh đổi
Điểm mạnh: High-fidelity operations; Long coherence; Strong connectivity.
Thách thức: Slower gates; Optical complexity; Scaling ion control.
Độ trưởng thành: early-commercial (cloud access); scaling architectures in progress.
Specific gate speeds, fidelities and qubit counts are not published here, they change quarterly. Verify against each company's latest technical publications, not press releases.
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IonQ
The first pure-play quantum company to list publicly; trapped-ion systems available through all major clouds.
public · IONQ
Quantinuum
Formed from Honeywell Quantum Solutions and Cambridge Quantum; trapped-ion hardware plus a large software arm, with prominent logical-qubit results.
subsidiary · majority-owned by Honeywell (HON)
Alpine Quantum Technologies
Austrian spin-out from Innsbruck's ion-trapping groups, selling compact rack-mounted trapped-ion systems.
private
Universal Quantum
UK company pursuing large-scale trapped-ion machines linked by electric-field chip-to-chip connections rather than optics.
private