Artificial neural network quantum states for atomic nuclei
ORAL
Abstract
Due to the exponential complexity of the many-body problem, solving the nuclear Schrödinger equation beyond light nuclei necessarily involves approximations. In this talk, we present a novel variational Monte Carlo method based on Artificial Neural Network representations of the ground-state wave functions that reach state-of-the-art precisions on light systems and favorably scale with the number of nucleons. We successfully benchmark nuclear binding energies, point-nucleon densities, and radii with the highly-accurate Green's function Monte Carlo and hyperspherical harmonics methods. The extensions of our approach to larger nuclei, including 16O, and periodic systems, will also be discussed.
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Publication: A. Gnech, N. Brawand, G. Carleo, A. Lovato, N. Rocco, Few Body Syst. 63 (2022) 1, 7<br>C. Adams, G. Carleo, A. Lovato, N. Rocco, Phys. Rev. Lett. 127 (2021) 2, 022502
Presenters
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Alessandro Lovato
Argonne National Laboratory
Authors
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Alessandro Lovato
Argonne National Laboratory
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Corey Adams
Argonne National Laboratory
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Noemi Rocco
FNAL
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Alex Gnech
Jefferson Lab/Jefferson Science Associat
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Giuseppe Carleo
Ecole Polytechnique Federale de Lausanne
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Nicholas Brawand
Argonne National Laboratory