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Quantum computing modalities compared

Compare superconducting, trapped-ion, neutral-atom, photonic, spin-qubit and topological quantum computers by qubit count, fidelity, connectivity and cloud availability.

Updated

Quantum computers use different physical systems to realize qubits. Each modality has distinct trade-offs in qubit count, gate fidelity, connectivity, coherence time, operating temperature and cloud availability.

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All quantum buying guides

Published by . How we check each quantum company.

Quantum Companies briefing

Occasional notes on vendor selection, modality comparison and quantum procurement.

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