Technology / Hardware / Quantum annealing
Quantum annealing
Analog evolution toward low-energy solutions (a distinct paradigm, not gate-based).
The tradeoff
Strengths: Commercial access; Large device sizes.
Challenges: Not equivalent to universal gate-model computing; Advantage is problem-specific.
Maturity: commercial for specific optimization workloads.
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.
Who is pursuing it
D-Wave
The annealing pioneer. Commercial machines for years, thousands of qubits, and an honest asterisk: annealing is purpose-built for optimization, not universal gate-model computing.
public · QBTS