Time Domain Characterization of Superconducting Qubits at Cryogenic Temperatures

Superconducting qubits are a promising candidate for practical quantum computing. This thesis describes the integration of a custom experimental setup with a sophisticated software framework to enable thorough exploration of qubit properties. The experiments conducted include the characterization of Rabi oscillations, T1 relaxation time, T∗2 dephasing time, Chevron plot analysis, state discrimination, and single-qubit randomized benchmarking. Key matrices such as the readout fidelity, gate fidelity and qubit temperature are derived from these experiments. Additionally, detailed guidelines for optimal experiment execution and hardware-level optimizations, including parameter calibration and tuning, are provided.