Nuclear shell-model simulation in digital quantum computers
| Autor: | Pérez-Obiol, A., Romero, A. M., Menéndez, J., Rios, A., García-Sáez, A., Juliá-Díaz, B. |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Scientific Reports 13 (1) (2023) 12291 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1038/s41598-023-39263-7 |
| Popis: | The nuclear shell model is one of the prime many-body methods to study the structure of atomic nuclei, but it is hampered by an exponential scaling on the basis size as the number of particles increases. We present a shell-model quantum circuit design strategy to find nuclear ground states by exploiting an adaptive variational quantum eigensolver algorithm. Our circuit implementation is in excellent agreement with classical shell-model simulations for a dozen of light and medium-mass nuclei, including neon and calcium isotopes. We quantify the circuit depth, width and number of gates to encode realistic shell-model wavefunctions. Our strategy also addresses explicitly energy measurements and the required number of circuits to perform them. Our simulated circuits approach the benchmark results exponentially with a polynomial scaling in quantum resources for each nucleus. This work paves the way for quantum computing shell-model studies across the nuclear chart and our quantum resource quantification may be used in configuration-interaction calculations of other fermionic systems. Comment: Version matching published version |
| Databáze: | arXiv |
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