Presentation
An Analytical Fidelity Model for Readout Circuitry with Multiple Co-Existing Non-Idealities for Superconducting Quantum Computing
DescriptionQuantum computers based on superconducting qubits require classical radio-frequency (RF) electronic circuits to control and read out the quantum states. As the complexity of quantum computers scales up, the classical circuitry part becomes increasingly important, calling for high-quality models for its design and optimization. In this paper, we derive an analytical model to quantify the impact of circuit non-idealities on the readout fidelity for superconducting quantum computing hardware. Such a model considers a comprehensive set of non-idealities commonly found in the readout chain, such as frequency, amplitude and phase inaccuracies, impedance mismatch, quantum noise, and amplifier noise, and predicts the joint effects of these non-idealities on the final fidelity. The model's accuracy and effectiveness are verified by numerical quantum-classical co-simulation. The availability of such a model can facilitate the design and optimization of practical quantum computers.
Event Type
Work-in-Progress Poster
TimeTuesday, June 256:00pm - 7:00pm PDT
LocationLevel 2 Lobby
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