Data underlying the publication: Improved error correction with leakage reduction units built into qubit measurement in a superconducting quantum processor

This research is to demonstrate a zero-time overhead leakage reduction unit in superconducting qubit and investigate its benefit in quantum error correction in experiment. The dataset is to support findings in the paper. The experiments were done on a 17-qubit superconducting quantum processor. Data are collected by standard readout of superconducting qubits using RF signals. Experiments include characterization of the leakage reduction unit, and its application in memory experiments of a distance-3 repetition code and 7-qubit stability experiments. The characterization sweeps the control parameters and plots the key performance, defined in the paper. The error correction experiments repeatedly measure qubits using the circuits defined in the paper, and use a neural-network decoder to interpret the measurement outcomes. The processing, training and testing of measurement outcomes with neural-network can be found in https://github.com/MarcSerraPeralta/data-lru-integrated-with-measurement-for-qec/