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Title: Optimal control for the quantum simulation of nuclear dynamics

Journal Article · · Physical Review A

We propose a method for enacting the unitary time propagation of two interacting neutrons at leading order of chiral effective-field theory by efficiently encoding the nuclear dynamics into a single multilevel quantum device. The emulated output of the quantum simulation shows that, by applying a single gate that draws on the underlying characteristics of the device, it is possible to observe multiple cycles of the nuclear dynamics before the onset of decoherence. Owing to the signal's longevity, we can then extract spectroscopic properties of the simulated nuclear system. This allows us to validate the encoding of the nuclear Hamiltonian and the robustness of the simulation in the presence of quantum-hardware noise by comparing the extracted spectroscopic information to exact calculations. This work paves the way for transformative calculations of the dynamical properties of nuclei on near-term quantum devices.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC02-07CH11359; AC52-07NA27344
OSTI ID:
1638683
Alternate ID(s):
OSTI ID: 1762860
Report Number(s):
FERMILAB-PUB--20-326-TD; arXiv:1908.08222; LLNL-JRNL--787600; oai:inspirehep.net:1750595
Journal Information:
Physical Review A, Journal Name: Physical Review A Journal Issue: 6 Vol. 101; ISSN PLRAAN; ISSN 2469-9926
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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