Automatic calibration of arrays of superconducting qubits and couplers
ORAL
Abstract
High-fidelity operation of superconducting qubits requires fine-tuning numerous experimental parameters. As superconducting qubit systems scale up to large arrays, automatic calibration becomes essential, both for bringing up systems from scratch and for maintaining calibrations. These algorithms depend strongly on the qubit architecture. For example, consider arrays of qubits connected by adjustable couplers, where the coupling can be turned off to isolate qubits and turned on to facilitate fast interactions. These couplers substantially complicate automatic calibration. At the start, the coupling may inadvertently be very strong, which can disrupt qubit bringup, and we can only learn about the coupler configuration indirectly through qubit measurements. In this presentation, we describe algorithms and experiments to automatically calibrate superconducting qubits and couplers.
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Presenters
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Kevin Satzinger
- Physics, University of California, Santa Barbara
- University of California, Santa Barbara
- Department of Physics, University of California, Santa Barbara
- Department of Physics, Univerity of California, Santa Barbara
- UC Santa Barbara; University of Chicago
- Google Inc - Santa Barbara