Example of qubit characterization measurements with Presto (adapted from Review of Scientific Instruments 93, 104711 (2022)). Gray dots show measurement data; solid lines show fits to theory. (a) Rabi oscillations with a sequence of ten DRAG-compensated control pulses, each with a sine-squared shape and duration 20 ns. The fitted amplitude for a π gate is 51.86% of the DAC full-scale range, or −5.9 dBm. (b) Measurements of energy-relaxation time T₁ and decoherence time T₂ from a Ramsey-echo experiment. (c) Chevron pattern from a series of Ramsey measurements.
All the measurements you need to perform to characterize a qubit, and the explanations of how to code with the Presto API can be found here.
The detailed explanation of the Presto architecture and examples of single qubit measurements can be found in a peer-reviewed publication here.