IQM Spark at Eldorado Research Institute

Raveh Neeman

doi:10.5281/zenodo.22674814

IQM Quantum Computers with Instituto de Pesquisas Eldorado

IQM Spark at Eldorado Research Institute

IQM Quantum Computers with Instituto de Pesquisas Eldorado · superconducting circuits · ANNOUNCED (installation in Campinas in Q1 2027) (Sep 2026) · 5 physical qubits · access: on-prem sold (Eldorado HQ, Campinas); users also get remote access to an IQM 54-qubit cloud system in Europe

architecture: Transmon lattice with tunable couplers · Open on the map

Register profile — the machine's variant of its architecture

qubit type: transmon

gate mechanism: CZ through tunable couplers

connectivity: 5 qubits, 4 couplers

gate evidence: no published figure

flags: a target, not a device

Technologies by layer — the machine's cell per layer

1 Qubit carrier	Transmon · primary ▦ education section (transmon qubit, multi-level nature) ✅ IQM Spark: 5 transmon qubits; the product page offers students physical access to the transmon and its higher levels
2 Encoding	Bare physical qubit (no encoding) · primary ◌ 🔎 bare transmon two-level subspace (family-determined)
3 Gate mechanism	Tunable-coupler CZ / iSWAP · primary ▦ specifications (CZ fidelity); features (tunable couplers) ✅ CZ two-qubit gate with tunable couplers; CZ fidelity >=99.0% typical, >=98.0% minimum (product spec)
4 Connectivity / transport	Static nearest-neighbour lattice · primary ▦ specifications (5 qubits, 4 couplers) ✅ static on-chip coupling: 5 qubits, 4 couplers
5 Control	Room-temperature electronics + per-qubit coax/flex · primary ◌ 🔎 room-temperature control electronics assumed (family-determined; not stated)
6 Readout	Dispersive microwave readout (+TWPA, Purcell) · primary ◌ 🔎 dispersive readout assumed (family-determined); readout fidelity >=97% typical, >=95% minimum (spec)
7 Code	— none — nothing in this layer ▨ 🔎 no QEC code; teaching, algorithm exploration and hybrid HPC-quantum-AI research
8 Decoder	— none — nothing in this layer ◌ 🔎 no decoder; no QEC
9 Interconnect	— none — nothing in this layer ◌ 🔎 single 5-qubit QPU on premises; no inter-module link
10 Manufacturing	Superconducting-qubit lithography (Al/AlOx/Al junctions, Nb wiring, 300 mm) · primary ▦ features (IQM-owned production facilities and clean room) ✅ QPU made in IQM-owned production facilities and clean room

evidence: ✅ 4 / 10