Assoc. Prof. Morten Kjaergaard

The field of advanced control and calibration of superconducting qubits have evolved dramatically over the last years. In this presentation I will discuss recent results from our lab on developing an very tight control-and-feedback loop between rapid FPGA-based advanced logic deployed for qubit characterization, optimisation and parameter estimation. In particular I’ll discuss new techniques for estimating T1 in just a few ms and some surprising physics we found at these very rapid observational speeds. In addition, I’ll show new work from our software suite that can estimate optimal parameters for readout, single-qubit parameters, coherence and gate benchmarking on millisecond timescales. Finally, I’ll discuss the impact of our results on fundamental physics and advanced control of superconducting qubits.