Benchmarking Quantum Coprocessors in an Application-Centric, Hardware-Agnostic, and Scalable Way

Autor: Simon Martiel, Thomas Ayral, Cyril Allouche
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: IEEE Transactions on Quantum Engineering, Vol 2, Pp 1-11 (2021)
Druh dokumentu: article
ISSN: 2689-1808
DOI: 10.1109/TQE.2021.3090207
Popis: Existing protocols for benchmarking current quantum coprocessors fail to meet the usual standards for assessing the performance of high-performance-computing platforms. After a synthetic review of these protocols—whether at the gate, circuit, or application level—we introduce a new benchmark, dubbed Atos Q-score, which is application-centric, hardware-agnostic, and scalable to quantum advantage processor sizes and beyond. The Q-score measures the maximum number of qubits that can be used effectively to solve the MaxCut combinatorial optimization problem with the quantum approximate optimization algorithm. We give a robust definition of the notion of effective performance by introducing an improved approximation ratio based on the scaling of random and optimal algorithms. We illustrate the behavior of Q-score using perfect and noisy simulations of quantum processors. Finally, we provide an open-source implementation of Q-score that makes it easy to compute the Q-score of any quantum hardware.
Databáze: Directory of Open Access Journals