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DOE OSTI · 1765281

Using Grover's search algorithm to characterize the Rigetti Quantum Computing Platform

Geyko, V. I.
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Abstract

Performance of the Rigetti quantum computing platform was tested during the period of time from 12/16/2019 to 05/18/2020. The Grover's search (GS) algorithm was used as a testing tool, in particular, 3- and 4-level versions of the algorithm. As a result, a number of hardware issues were revealed, so the algorithm was split to smaller blocks and individual gates, and all of them were tested separately. The fidelity decay was found to be due to both decoherent processes and coherent errors of the native hardware gates. These errors were estimated from RX gate benchmarks and were in a form of extra rotation of the quantum state. As a consequence of that, performance of the algorithm was shown to be strongly dependent on the native gate decomposition of the program. Suggestions and possible improvements of the future Rigetti runs are made based on the obtained observations.

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97 MATHEMATICS AND COMPUTING

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Geyko, V. I.. 2021-02-19. Using Grover's search algorithm to characterize the Rigetti Quantum Computing Platform. https://doi.org/10.2172/1765281

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