Quantum computing hardware

Systems and chips by modality (superconducting, trapped ion, neutral atom, photonic, silicon spin, topological, bosonic and cat qubits); annealers, labelled as such; analog simulators; physical qubit and fidelity records; product launches with specifications; hardware roadmaps for physical systems.

Not here: Results whose headline is logical qubits, codes or logical error (Error correction and fault tolerance); quantum inspired classical hardware (Software, algorithms and advantage, labelled classical, or out); stock moves.