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Quantum/Machines/IQM Spark at TOYO R&D Center

Japan · planned · Superconducting circuits

IQM Spark at TOYO R&D Center

IQM Spark at TOYO R&D Center is a superconducting circuits quantum computer operated by TOYO Corporation in Japan. Its physical qubit count has not been published. 15 sourced specs are in the spec sheet. No benchmark figures are recorded for it yet.

Also known as TOYO Spark

TOYO's second IQM purchase, to be installed at its R&D center in Kiba, Tokyo, delivered by the end of 2026 and operational in early 2027. The release text consulted gives no qubit count, so none is recorded.

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.

SpecValueBasisNoteSource
Processor IQM Spark 5-qubit QPU Vendor reported IQM lists Spark as 5 qubits with 4 couplers. iqm.techarxiv.org
Qubit type transmon Vendor reported IQM Spark paper describes transmon qubits with transmon-based tunable couplers; family-wide statement. arxiv.orgiqm.tech
Topology star: one central qubit coupled to four outer qubits via tunable couplers Vendor reported IQM Spark paper describes the star layout; family-wide statement. arxiv.orgiqm.tech
Max connectivity 4 Vendor reported Central qubit couples to all four outer qubits; outer qubits couple only to the center. arxiv.org
Couplers 4 Vendor reported IQM states 5 qubits and 4 tunable couplers. iqm.techarxiv.org
Native gates arbitrary X-Y rotation (PRX) and CZ Vendor reported IQM Spark paper transpiles circuits to X-Y rotations and CZ; the datasheet names CZ as the two-qubit gate; family-wide statement. arxiv.org
Single-qubit gate time 20 ns Vendor reported IQM Spark datasheet typical single-qubit gate duration of 20 ns or less (minimum spec 40 ns); datasheet value, not measured on this unit. iqm.tech
Two-qubit gate time 60 ns Vendor reported IQM Spark datasheet typical CZ duration of 60 ns or less (minimum spec 100 ns); datasheet value, not measured on this unit. iqm.tech
Cooling and environment dilution refrigerator (Bluefors), experiment stage at 30 mK or colder Vendor reported IQM Spark paper describes a commercial Bluefors dilution refrigerator; family-wide statement. arxiv.org
Operating temperature 30 mK Vendor reported Paper says experiments ran with the experimental stage at 30 mK or cooler; value is an upper bound for the Spark design, not measured at this site. arxiv.org
Power draw 11 kW Vendor reported IQM Spark datasheet typical mean total electrical power; datasheet value, not measured at this site. iqm.tech
Fabrication IQM's own fab and clean room in Espoo, Finland Vendor reported IQM Spark page cites IQM-owned production facilities and clean room; the whitepaper names the Espoo facility for IQM QPUs. iqm.techarxiv.org
Software Cortex (Qiskit, Cirq, OpenQASM 2.0) and EXA pulse-level Python framework Vendor reported Software layers named in the IQM Spark paper; family-wide statement. arxiv.org
Access and pricing On-premises at TOYO R&D center in Kiba, Tokyo; TOYO plans to open it to Japanese universities, startups and researchers Vendor reported IQM release of 2026-09-15; not yet operational. iqm.tech
Roadmap Delivery by end of 2026 and operational in early 2027 at the Kiba R&D center Vendor reported IQM and TOYO announcement of 2026-09-15. iqm.tech

Timeline

More from TOYO Corporation

Comparable superconducting machines

Closest in physical qubit count within the same technology. Counts of different qubit types are not interchangeable across technologies.

MachineOperatorQubitsStatus
Euro-Q-Exa LRZ 54 operational
ORNL Pathfinder Oak Ridge National Laboratory 20 operational
Rigetti Cepheus-1-108Q Rigetti Computing 108 operational
Origin Wukong-180 Origin Quantum 180 operational
IQM Radiance NOX at CINECA CINECA 54 operational
IQM Radiance at Poznan University of Technology Poznan University of Technology - operational