Quantum/Machines/Fujitsu 1,000-Qubit System
Japan · planned · Superconducting circuits
Fujitsu 1,000-Qubit System
Fujitsu 1,000-Qubit System is a superconducting circuits quantum computer operated by Fujitsu in Japan. It has 1,000 physical qubits. It ranks 2 of 43 superconducting machines in this table by physical qubit count. 3 sourced specs are in the spec sheet. No benchmark figures are recorded for it yet.
Also known as Fujitsu RIKEN 1,000-qubit superconducting computer
RIKEN said in April 2025 the 1,000-qubit machine was scheduled for launch in 2026. RIKEN's 2026 news list to 7 September shows no launch and Fujitsu's site could not be read, so it stays planned. The 1,000 count is a target.
Spec sheet
Technical details as the builder or a paper states them, each with its own source. A blank is a fact we could not source, not a zero. Fidelity and coherence figures are in the benchmark table below.
| Spec | Value | Basis | Note | Source |
|---|---|---|---|---|
| Predecessor | RIKEN Fujitsu 256-qubit | Vendor reported | The 1,000-qubit machine is the next step announced alongside the 256-qubit system in April 2025. | info.archives.global.fujitsuriken.jp |
| Successor | Fujitsu 10,000-plus qubit superconducting computer with 250 logical qubits (STAR architecture), due fiscal 2030 | Vendor reported | Fujitsu announced R&D start on 1 August 2025 under a NEDO project with AIST and RIKEN running to fiscal 2027. | thequantuminsider.comquantumcomputingreport.com |
| Roadmap | Installation in a new building at Fujitsu Technology Park, Kawasaki, scheduled for 2026 | Vendor reported | Stated in April 2025; no launch confirmation found, so the schedule may have slipped. | info.archives.global.fujitsuthequantuminsider.com |
Timeline
- 2024-12: Announced
- 2026-10-07: Status checked: planned
Comparable superconducting machines
Closest in physical qubit count within the same technology. Counts of different qubit types are not interchangeable across technologies.
| Machine | Operator | Qubits | Status |
|---|---|---|---|
| IBM Condor | IBM | 1,121 | operational |
| Tianyan-504 | China Telecom | 504 | operational |
| IBM Osprey | IBM | 433 | decommissioned |
| RIKEN Fujitsu 256-qubit | RIKEN | 256 | operational |
| Origin Wukong-180 | Origin Quantum | 180 | operational |
| IBM Heron | IBM | 156 | operational |