VTT Technical Research Centre of Finland

academic · Espoo, Finland · https://www.vttresearch.com/en/ourservices/quantum-technology

Machines in the Atlas (1)

• VTT Q50 — DEPLOYED, 50 q, Mar 2025

Technologies its machines use

• Transmon · 1
• Bare physical qubit (no encoding) · 1
• Tunable-coupler CZ / iSWAP · 1
• Static nearest-neighbour lattice · 1
• Room-temperature electronics + per-qubit coax/flex · 1
• Dispersive microwave readout (+TWPA, Purcell) · 1
• Superconducting-qubit lithography (Al/AlOx/Al junctions, Nb wiring, 300 mm) · 1

Architectures

• Transmon lattice with tunable couplers