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• W3207343485 abstract "We explore the preparation of specific nuclear states on gate-based quantum hardware using variational algorithms. Large-scale classical diagonalizations of the nuclear shell model have reached sizes of ${10}^{9}--{10}^{10}$ basis states but are still severely limited by computational resources. Quantum computing can, in principle, solve such systems exactly with exponentially fewer resources than classical computing. Exact solutions for large systems require many qubits and large gate depth, but variational approaches can effectively limit the required gate depth. We use the unitary coupled cluster approach to construct approximations of the ground-state vectors, later to be used in dynamics calculations. The testing ground is the phenomenological shell model space, which allows us to mimic the complexity of the internucleon interactions. We find that often one needs to minimize over a large number of parameters, using a large number of entanglements that makes the application on existing hardware challenging. Prospects for rapid improvements with more capable hardware are, however, very encouraging." @default.
• W3207343485 created "2021-10-25" @default.
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• W3207343485 date "2022-06-21" @default.
• W3207343485 modified "2023-10-04" @default.
• W3207343485 title "Variational approaches to constructing the many-body nuclear ground state for quantum computing" @default.
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• W3207343485 doi "https://doi.org/10.1103/physrevc.105.064308" @default.
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