Quantum mechanics

Theoretical physics

Nuclear structure

Nuclear physics

Particle physics

Effective field theory

Ab initio

Computer science

Nuclear data

Statistical physics

Neutron

Physics

Renormalization group

Excited state

Frontiers in Physics

Over the last decade, new developments in Similarity Renormalization Group techniques and nuclear many-body methods have dramatically increased the capabilities of ab initio nuclear structure and reaction theory. Ground and excited-state properties can be computed up to the tin region, and from the proton to the presumptive neutron drip lines, providing unprecedented opportunities to confront two- plus three-nucleon interactions from chiral Effective Field Theory with experimental data. In this contribution, I will give a broad survey of the current status of nuclear many-body approaches, and I will use selected results to discuss both achievements and open issues that need to be addressed in the coming decade.

A Guided Tour of ab initio Nuclear Many-Body Theory