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arXiv · 2108.03708

Detecting Qubit-coupling Faults in Ion-trap Quantum Computers

Andrii O. Maksymov·Jason Nguyen·Vandiver Chaplin·Yunseong Nam·Igor L. Markov
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Abstract

Ion-trap quantum computers offer a large number of possible qubit couplings, each of which requires individual calibration and can be misconfigured. To enhance the duty cycle of an ion trap, we develop a strategy that diagnoses individual miscalibrated couplings using only log-many tests. This strategy is validated on a commercial ion-trap quantum computer, where we illustrate the process of debugging faulty quantum gates. Our methodology provides a scalable pathway towards fault detections on a larger scale ion-trap quantum computers, confirmed by simulations up to 32 qubits.

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Andrii O. Maksymov, Jason Nguyen, Vandiver Chaplin, Yunseong Nam, Igor L. Markov. 2021-08-08. Detecting Qubit-coupling Faults in Ion-trap Quantum Computers. https://arxiv.org/abs/2108.03708

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