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arXiv · 1706.07668

Quantum Monte Carlo calculations of light nuclei with local chiral two- and three-nucleon interactions

J. E. Lynn·I. Tews·J. Carlson·S. Gandolfi·A. Gezerlis·K. E. Schmidt·A. Schwenk
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Abstract

Local chiral effective field theory interactions have recently been developed and used in the context of quantum Monte Carlo few- and many-body methods for nuclear physics. In this work, we go over detailed features of local chiral nucleon-nucleon interactions and examine their effect on properties of the deuteron, paying special attention to the perturbativeness of the expansion. We then turn to three-nucleon interactions, focusing on operator ambiguities and their interplay with regulator effects. We then discuss the nuclear Green's function Monte Carlo method, going over both wave-function correlations and approximations for the two- and three-body propagators. Following this, we present a range of results on light nuclei: Binding energies and distribution functions are contrasted and compared, starting from several different microscopic interactions.

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J. E. Lynn, I. Tews, J. Carlson, S. Gandolfi, A. Gezerlis, K. E. Schmidt, A. Schwenk. 2017-12-06. Quantum Monte Carlo calculations of light nuclei with local chiral two- and three-nucleon interactions. https://doi.org/10.1103/physrevc.96.054007

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