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

[We-P-103] IQ-encoded RF Reflectometry of Multiple Silicon Quantum Dots

〇Yuto Arakawa¹, Raisei Mizokuchi¹, Naoya Negami¹, Itaru Yanagi², Toshiyuki Mine², Ryuta Tsuchiya², Digh Hisamoto², Hiroyuki Mizuno², Tetsuo Kodera¹ (1. Science Tokyo (Japan), 2. R&D Group, Hitachi, Ltd. (Japan))

We experimentally demonstrate an IQ-encoded RF reflectometry by coupling two silicon QDs to a single resonator. We confirm that four distinct charge states can be adptively mapped onto the IQ plane. Our results provide a scalable pathway to reduce hardware complexity in large-scale semiconductor quantum computers.