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DOE OSTI · 2283641

Using Grover’s search protocol to select the best qubit pairs

Geyko, V. I.·Joseph, I.
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Abstract

This research represents a continuation of our investigation of the Rigetti quantum platform as part of the Quantum Leap for Fusion Energy Sciences project. We evaluate the performance of the new Aspen-11, Aspen-M-2, Aspen-M-3 quantum processing units (QPU) through the application of the Grover’s search algorithm and the validation of single gate fidelities. The performance of the new QPUs is compared to the older Aspen-7 device, and it is shown that qubit pair selection plays a key role in the optimization process. Additionally, we delve into the examination of coherent and decoherent errors associated with native gates. To optimize our approach, we have developed several relatively inexpensive hardware protocols aimed at facilitating the selection of the most suitable qubit pairs. These protocols involve running various circuits on the hardware and assessing the overall performance of the tested qubit pairs. Through these protocols, we have demonstrated that the quality of qubit pairs on a single chip can exhibit significant variations.

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70 PLASMA PHYSICS AND FUSION TECHNOLOGY97 MATHEMATICS AND COMPUTING

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Geyko, V. I., Joseph, I.. 2023-09-30. Using Grover’s search protocol to select the best qubit pairs. https://doi.org/10.2172/2283641

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