[We-P] Quantum technologies: semiconductor qubits and applications, cryo-CMOS technologies

[We-P-107] Cryogenic Spin Qubit Package Design for High Density Control Lines and Low Loss Readout

〇Yasuyuki Oikawa¹, Hiroyuki Inoue¹, Fabio Ansaloni², Soren Andresen², Merlin von Soosten² (1. QM technologies Japan (Japan), 2. QM technologies Denmark (Denmark))

We propose a new spin qubit package having high density control lines and low loss readout which demonstrate a bandwidth of 3 GHz with a reflection parameter below −20 dB and consistent attenuation. This package can support ~50 LV spin qubits with improved and uniform fidelity.