Quantum Webinar Series - Increasing the complexity of semiconductor quantum devices (Video)

Encoding quantum information in the spins of electrons or holes confined in semiconductor quantum dots is an extremely promising technology, due to long coherence times, inherent gate-voltage tunability, and compatibility with industrial foundry fabrication. As these quantum devices are scaled up in linear and two-dimensional arrays, the density of gate electrodes can lead to more and more operational complexity. In this talk, I will present our advances in implementing fast, high-fidelity, and simultaneous qubit readout as well as in the automated tuning, loading and calibration of gate-voltage controlled arrays of quantum dots. I will also showcase new techniques such as real-time fast feedback that enable "online" closed-loop control of quantum systems. Lastly, I will describe added functionality due to cross-connections between the fields of quantum information and more fundamental condensed matter physics, in the context of hybrid superconductor-semiconductor materials.