TheTechno Optimist.

Silicon Quantum Computing—DARPA selects Silicon Quantum Computing for Quantum Benchmarking Initiative Stage B

Precision Atom-Qubit Processors

by Silicon Quantum ComputingAU

SQC's core program: silicon spin qubits with phosphorus atoms at atomic precision. Target is utility-scale error-corrected computers by 2033.

ProtoStage 2 of 5

14–15 qubits, >99% fidelity. Advancing toward logical qubits and 100-qubit devices by 2028.

Checked 10 Oct0 updates this week

Milestones

Next · Logical qubit milestone
  1. First three-qubit entanglement in silicon donor systems2021Complete.
  2. 10-qubit integrated quantum circuit completed2022Complete.
  3. 4-qubit programmable device with >99% fidelity2024Complete.
  4. DARPA Quantum Benchmarking Initiative Stage B selectionNov 2025Complete.
  5. Logical qubit milestoneTarget Q4 2026Current milestone.
  6. 100-qubit device targetTarget 2028Not yet reached.
  7. Utility-scale computer targetTarget 2033Not yet reached.

Upcoming

  1. 2026Logical qubit demonstration (next)
  2. Q4 2026Logical qubit milestone
  3. 2028100-qubit device target
  4. 2028100-qubit processor milestone
  5. 2033Utility-scale computer target
Primer