Exploring Exotic and Deformed Nuclei from First Principles

par Alexander Tichai (TU Darmstadt)

jeudi 2 juil. 2026, 14:00 → 15:00 Europe/Paris

100/-1-A900 - Auditorium Joliot Curie (IJCLab)

Ab initio calculations have become increasingly more important for understanding atomic nuclei from inter-nucleon interactions. By combining systematically improvable many-body methods with interactions derived from chiral effective field theory, these approaches provide predictive power across the nuclear chart, including regions beyond current experimental reach.

In this talk, I will present recent advances in the description of structurally complex and exotic nuclei. Using coupled-cluster theory, I will discuss systematic studies of binding energies and charge radii along the tin isotopic chain, with particular emphasis on the evolution of the N=50 and N=82 shell closures and on neutron-drip-line predictions relevant for astrophysical r-process nucleosynthesis. 

In a complementary direction, I will describe recent progress toward an ab initio description of strongly deformed nuclei. This includes accurate calculations of neon and magnesium isotopes as well as the prediction of rotational spectra through symmetry-restoration techniques.

Finally, I will discuss tensor-network methods as a powerful framework for nuclear structure theory. Using the density matrix renormalization group approach, spectroscopy of medium-mass nuclei can be described with high accuracy. I will also highlight emerging opportunities at the interface of nuclear physics and quantum information science, where entanglement-based measures provide new perspectives on nuclear structure, collectivity, and the complexity of many-body wave functions.