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- W4367000374 abstract "Model-based quantum optimal control promises to solve a wide range of critical quantum technology problems within a single, flexible framework. The catch is that highly-accurate models are needed if the optimized controls are to meet the exacting demands set by quantum engineers. A practical alternative is to directly calibrate control parameters by taking device data and tuning until success is achieved. In quantum computing, gate errors due to inaccurate models can be efficiently polished if the control is limited to a few (usually hand-designed) parameters; however, an alternative tool set is required to enable efficient calibration of the complicated waveforms potentially returned by optimal control. We propose an automated model-based framework for calibrating quantum optimal controls called Learning Iteratively for Feasible Tracking (LIFT). LIFT achieves high-fidelity controls despite parasitic model discrepancies by precisely tracking feasible trajectories of quantum observables. Feasible trajectories are set by combining black-box optimal control and the bilinear dynamic mode decomposition, a physics-informed regression framework for discovering effective Hamiltonian models directly from rollout data. Any remaining tracking errors are eliminated in a non-causal way by applying model-based, norm-optimal iterative learning control to subsequent rollout data. We use numerical experiments of qubit gate synthesis to demonstrate how LIFT enables calibration of high-fidelity optimal control waveforms in spite of model discrepancies." @default.
- W4367000374 created "2023-04-27" @default.
- W4367000374 creator A5039194337 @default.
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- W4367000374 date "2023-04-24" @default.
- W4367000374 modified "2023-10-17" @default.
- W4367000374 title "Automatic pulse-level calibration by tracking observables using iterative learning" @default.
- W4367000374 doi "https://doi.org/10.48550/arxiv.2304.12166" @default.
- W4367000374 hasPublicationYear "2023" @default.
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