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- W4309953815 abstract "Quantum chemistry is one of the most promising applications of quantum computers in the near future. For noisy intermediate-scale quantum devices, the quantum-classical hybrid framework based on the variational quantum eigensolver (VQE) has become the method of choice. In the literature, there are many different variants of VQE, but it is not known which one is optimal for a given molecule. For this purpose, we perform a thorough benchmarking on more than ten different kinds of VQE ansatzes (in systems up to 30 qubits), based on their performance on the energy accuracy, runtime until convergence, and number of parameters. Our results show that the ADAPT ansatz can be used to obtain more accurate energy for small systems (below 14 qubits), but it costs much more computational resources. For larger molecules, UCCSD0 has better performance. However, all the tested ansatzes can hardly reach chemical accuracy at stretched bond lengths. Our results were obtained using MindSpore Quantum, where the codes and the benchmarking toolkit are publicly available at Gitee." @default.
- W4309953815 created "2022-11-30" @default.
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- W4309953815 date "2022-11-23" @default.
- W4309953815 modified "2023-10-16" @default.
- W4309953815 title "Benchmarking Variational Quantum Eigensolvers for Quantum Chemistry" @default.
- W4309953815 doi "https://doi.org/10.48550/arxiv.2211.12775" @default.
- W4309953815 hasPublicationYear "2022" @default.
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