Speaker
Description
Computations of nuclei starting from nuclear Hamiltonians have seen significant progress in the past two decades. Such calculations start from interactions from effective field theory. The Hamiltonians are then typically expanded in a harmonic oscillator basis and solved using systematically improvable many-body methods. Calculations on a discrete position-space lattice offer a promising alternative. Nuclear forces are short-ranged, so the resulting Hamiltonians are sparse. I will present progress on computations of nuclei on the lattice using the Python package NuLattice. I will introduce quantum and classical computations using zero-range interactions. I will present computations of nuclei and nuclear matter using simple interactions, benchmarking results from Nuclear Lattice Effective Field Theory for the first time. Many of these Hamiltonians do not give realistic saturation properties, and we investigate the mechanisms that lead to saturation on the lattice.