Quantum/Machines/Euro-Q-Exa
Germany · operational · Superconducting circuits
Euro-Q-Exa
Euro-Q-Exa is a superconducting circuits quantum computer operated by LRZ in Germany. It has 54 physical qubits. It ranks 25 of 43 superconducting machines in this table by physical qubit count. 12 sourced specs are in the spec sheet. No benchmark figures are recorded for it yet.
Also known as EuroHPC Euro-Q-Exa
IQM Radiance system at the Leibniz Supercomputing Centre, integrated with SuperMUC-NG and planned to work with the future Blue Lion system. Users reach it through the Munich Quantum Portal and the EuroHPC access portal. A second 150-qubit IQM system is planned; LRZ says by the end of 2026 while the EuroHPC page says early 2027, so the timing is not settled. Only the current 54-qubit system is counted here.
Co-located supercomputer: SuperMUC-NG. This machine is integrated with, or hosted beside, that system.
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 |
|---|---|---|---|---|
| Processor | IQM Radiance 54-qubit QPU | Independent | LRZ says Euro-Q-Exa is based on the IQM Radiance system with 54 qubits; EuroHPC confirms IQM as supplier and 54 qubits (2026-02-12) but does not name Radiance. | lrz.deeurohpc-ju.europa.eu |
| Qubit type | Superconducting circuit qubits | Independent | Both pages state superconducting qubits; the qubit design is not stated. | eurohpc-ju.europa.eulrz.de |
| Topology | Square lattice with tunable couplers | Independent | EuroHPC states a square lattice; the IQM Radiance product page states a square lattice with tunable couplers for the 54-qubit option; LRZ confirms tunable couplers. | eurohpc-ju.europa.euiqm.tech |
| Couplers | 90 | Vendor reported | IQM 2024 presentation lists 54 data qubits plus 90 coupler qubits for the Radiance 54-qubit QPU; family-level figure, not confirmed for the LRZ unit. | quantumcomputinglab.cineca.it |
| Native gates | Arbitrary X and Y rotations, CZ | Vendor reported | Stated by IQM for the Radiance product family (54-qubit option), not specifically for the LRZ unit. | iqm.tech |
| Cooling and environment | Cryostat cooling below -273 C | Independent | LRZ gives no exact temperature. | lrz.de |
| Fabrication | IQM own quantum foundry, Espoo, Finland (company-level) | Vendor reported | The IQM presentation (2024) describes a 600 square metre foundry in Espoo; it does not name the foundry for this chip. | quantumcomputinglab.cineca.it |
| Software | Qiskit, PennyLane via the Munich Quantum Software Stack (MQSS) | Independent | LRZ also mentions a variety of programming languages. | lrz.de |
| Cloud platforms | Munich Quantum Portal; EuroHPC JU access portal | Independent | Both pages name these two access routes (2026-02-12). | lrz.deeurohpc-ju.europa.eu |
| Access and pricing | Via the Munich Quantum Portal and the EuroHPC JU access portal | Independent | LRZ says it can be used standalone or with SuperMUC-NG; primarily for research and innovation across academia, industry and the public sector; no price published. | lrz.deeurohpc-ju.europa.eu |
| Successor | 150-qubit IQM system (upgrade or second system) | Independent | Both pages say a 150-qubit system follows by the end of 2026; they differ on whether it is an upgrade (EuroHPC) or a second system (LRZ). | eurohpc-ju.europa.eulrz.de |
| Roadmap | Expansion to 150 qubits by end of 2026; future coupling to the Blue Lion supercomputer | Independent | Stated on 2026-02-12. | lrz.deeurohpc-ju.europa.eu |
Timeline
- 2026-02-12: First operational
- 2026-10-04: Status checked: operational
More from LRZ
- AQT LRZ Ion-Trap System (operational, 20 qubits)
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 |
|---|---|---|---|
| IQM Emerald | IQM Quantum Computers | 54 | operational |
| IQM Radiance NOX at CINECA | CINECA | 54 | operational |
| Google Sycamore | Alphabet | 53 | operational |
| VTT Q50 | VTT | 50 | operational |
| G-QuAT System F | AIST | 64 | operational |
| Origin Wukong | Origin Quantum | 72 | operational |