Lawrence Berkeley National Laboratory

academic · Berkeley, CA, United States · https://quantumsystemsaccelerator.org/

Machines in the Atlas (1)

• Advanced Quantum Testbed (AQT) — DEPLOYED (open testbed), 8 q, 2018-2026

Technologies its machines use

• Transmon · 1
• Bare physical qubit (no encoding) · 1
• Cross-resonance (fixed-frequency, all-microwave) · 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

Mentioned in the briefs of

• Cross-resonance (fixed-frequency, all-microwave)