1204.1755 (T. Abe et al.)

Benchmarks of the ab initio FCI, MCSM and NCFC methods    [PDF]

T. Abe, P. Maris, T. Otsuka, N. Shimizu, Y. Utsuno, J. P. Vary

We report ab initio no-core solutions for properties of light nuclei with three different approaches in order to assess the accuracy and convergence rates of each method. Full Configuration Interaction (FCI), Monte Carlo Shell Model (MCSM) and No Core Full Configuration (NCFC) approaches are solved separately for the ground state energy and other properties of seven light nuclei using the realistic JISP16 nucleon-nucleon interaction. The results are consistent among the different approaches. The methods differ significantly in how the required computational resources scale with increasing particle number for a given accuracy.

View original: http://arxiv.org/abs/1204.1755