Part 1: QDAC-II, Versatile many-channel voltage source for quantum electronics Part 2: QCage.24, New microwave sample holder for high-fidelity superconducting qubits

Part 1: In this workshop we will present QDevil’s new advanced voltage source QDAC-II, designed for DC control of quantum dot based qubits and flux biasing in superconducting qubits with many other applications.

Part 2: Scalable superconducting quantum hardwave require extremely complex sample holders, so far out of reach for the broader scientific community. QDevil therefore decided to develop a versatile high-fidelity qubit sample holder with 24 coaxial transmission lines optimized up to 18 GHz. We present the benefits and show performance data that confirms superior low loss and long coherence performance with Q-factors well over a million.