Quantum Monte Carlo Calculations of Light Nuclei

Details Quantum Monte Carlo Calculations of Light Nuclei Quantum Monte Carlo Calculations of Light Nuclei

2004-10-27

arxiv.org/abs/nucl-th/0410115v1

Nucl.Phys. A751 (2005) 516-532

Physics

Nuclear Physics

Nuclear Theory

INPC2004 Proceedings, 17 pages

Scientific paper

10.1016/j.nuclphysa.2005.02.018

Variational Monte Carlo and Green's function Monte Carlo are powerful tools for calculations of properties of light nuclei using realistic two-nucleon and three-nucleon potentials. Recently the GFMC method has been extended to multiple states with the same quantum numbers. The combination of the Argonne v_18 two-nucleon and Illinois-2 three-nucleon potentials gives a good prediction of many energies of nuclei up to 12C. A number of other recent results are presented: comparison of binding energies with those obtained by the no-core shell model; the incompatibility of modern nuclear Hamiltonians with a bound tetra-neutron; difficulties in computing RMS radii of very weakly bound nuclei, such as 6He; center-of-mass effects on spectroscopic factors; and the possible use of an artificial external well in calculations of neutron-rich isotopes.

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