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VLQ

IT4Innovations National Supercomputing Center (VSB - Technical University of Ostrava)

VLQ

IT4Innovations National Supercomputing Center (VSB - Technical University of Ostrava) · superconducting circuits · DEPLOYED (Sep 2025) · 24 physical qubits · access: national allocation (EuroHPC JU access; integrated with the KAROLINA supercomputer); open to users since 14 Jul 2026 after testing and validation (16 projects awarded; IT4I Open Access Grant Competitions)
architecture: Transmon lattice with tunable couplers · Open on the map

Register profile — the machine's variant of its architecture

qubit type: superconducting (type not stated)
gate mechanism: not published
connectivity: star: 24 qubits connected to a central resonator
flags: no published error rates

Technologies by layer — the machine's cell per layer

1 Qubit carrier
Transmon · primary ▨ 🔎
24 superconducting qubits supplied by IQM; transmon type not stated
2 Encoding
Bare physical qubit (no encoding) · primary ◌ 🔎
bare two-level subspace; no encoding beyond the physical qubit
3 Gate mechanism
— undisclosed — exists, nothing published ▨ 🔎
gate mechanism between qubits and the central resonator not stated by IT4I or IQM for VLQ
4 Connectivity / transport
— (Atlas gap: ∅G-bus) · primary ▨ ✅
star topology: 24 qubits connected to one central resonator, all-to-all through it
5 Control
Room-temperature electronics + per-qubit coax/flex · primary ◌ 🔎
control electronics not published; room-temperature electronics assumed (family)
6 Readout
Dispersive microwave readout (+TWPA, Purcell) · primary ◌ 🔎
dispersive readout assumed (family); no readout data published
7 Code
— none — nothing in this layer ◌ 🔎
no QEC code run
8 Decoder
— none — nothing in this layer ◌ 🔎
no decoder; no QEC run
9 Interconnect
— none — nothing in this layer ◌ 🔎
single 24-qubit QPU; no interconnect
10 Manufacturing
Superconducting-qubit lithography (Al/AlOx/Al junctions, Nb wiring, 300 mm) · primary ◌ 🔎
superconducting chip supplied by IQM; fab site not stated
evidence: ✅ 1 / 10