Towards high-precision ab initio calculations over the nuclear chart

Over the past few decades, ab initio many-body methods for finite nuclei have moved past the limitations constraining them to the few-body sector, and are now reaching nuclei up to A ∼ 130 thanks to both a flourishing in new formalisms and computational progress. While progress keep being made in terms of accessible systems and observables, new constraints have appeared that prevent them to enter into the heavy mass regime.

In this seminar, I will discuss what prevents ab initio methods from moving past the Sn isotopic line, as well as recent attempts at extending this range, and explore approaches to circumvent those limitations and extend accurate ab initio calculations over the whole nuclear chart.