Ab initio Calculation of Light Nuclei Based on the Antisymmetrized Molecular Dynamics―A New Approach of Correlation Function Method―

Abstract

We recently developed a new variational method named “tensor-optimized antisymmetrized molecular dynamics”(TOAMD) for nuclear many-body systems. We can treat the bare nucleon-nucleon interaction in terms of the correlation functions for the short-range repulsion in the central force and for the non-central tensor force. We can extend the variational space of TOAMD by adding the correlation terms successively in the form of the power series expansion. It is shown that TOAMD reproduces the results of the few-body calculations for light nuclei. It is confirmed that the variational accuracy of TOAMD is better than that of the variational Monte Carlo calculation based on the Jastrow correlation method.