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Local chiral effective field theory interactions and quantum Monte Carlo applications

Year: 2014
Type: article
Abstract: We present details of the derivation of local chiral effective field theory interactions to next-to-next-to-leading order and show results for nucleon-nucleon phase shifts and deuteron properties for these potentials. We then perform systematic auxiliary-field diffusion Monte Carlo calculations for neutron matter based on the developed local chiral potentials at different orders. This includes studies of the effects of the spectral-function regularization and of the local regulators. For all orders, we compare the quantum Monte Carlo results with perturbative many-body calculations and find excellent agreement for low cutoffs.
DOI: 10.1103/physrevc.90.054323
Authors: A. Gezerlis, I. Tews, E. Epelbaum, M. Freunek, S. Gandolfi, K. Hebeler, A. Nogga, A. Schwenk
Institutions: University of Guelph, GSI Helmholtz Centre for Heavy Ion Research, Technische Universität Darmstadt, ExtreMe Matter Institute EMMI, Ruhr University Bochum, Los Alamos National Laboratory, Forschungszentrum Jülich
Language: English
Open Access status: green
Funders: U.S. Department of Energy, National Energy Research Scientific Computing Center, Helmholtz-Gemeinschaft, Emberi Eroforrások Minisztériuma, Natural Sciences and Engineering Research Council of Canada, European Research Council, Laboratory Directed Research and Development
OpenAlex ID: W2013181429
FWCI: 8.733
Cites: 77
Cited by: 241
Related to: 10