Abstract :
We describe recent progress in Quantum Monte Carlo calculations of nuclear structure and reactions. Significant advances have been made recently in understanding the nuclear Hamiltonian, including realistic two- and three-nucleon interactions. We describe recent progress in solving the nuclear Hamiltonian for two important long-standing problems in nuclear theory: (1) low-energy scattering in n-4He and the spin-orbit splitting obtained with microscopic Hamiltonians, and (2) the pairing gap in low-density neutron matter. Accurate calculations of both quantities are fundamental in understanding nuclei from the underlying microscopic Hamiltonian.