Neutron matter with Quantum Monte Carlo: chiral 3N forces and static response

18th International Conference on Recent Progress in Many-Body Theories

Buraczynski, M.^1 ; Gandolfi, S.^2 ; Gezerlis, A.^1 ; Schwenk, A.^3,4 ; Tews, I.^3,4

Department of Physics, University of Guelph, Guelph

ON

N1G 2W1, Canada^1

Theoretical Division, Los Alamos National Laboratory, Los Alamos

NM

87545, United States^2

Institut für Kernphysik, Technische Universitat Darmstadt, Darmstadt

64289, Germany^3

ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt

64291, Germany^4

关键词: Chiral effective-field theory;    Many-body problems;    Neutron matter;    Neutron-rich nuclei;    Nuclear interaction;    Quantum monte carlo;    Quantum Monte Carlo methods;    Static response;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/702/1/012014/pdf
DOI  :  10.1088/1742-6596/702/1/012014

来源: IOP

【 摘 要 】

Neutron matter is related to the physics of neutron stars and that of neutron-rich nuclei. Quantum Monte Carlo (QMC) methods offer a unique way of solving the many-body problem non-perturbatively, providing feedback on features of nuclear interactions and addressing scenarios that are inaccessible to other approaches. In this contribution we go over two recent accomplishments in the theory of neutron matter: a) the fusing of QMC with chiral effective field theory interactions, focusing on local chiral 3N forces, and b) the first attempt to find an ab initio solution to the problem of static response.