A01”Challenges in accurate calculation of quantum systems with more than 10 bodies”

A01”Challenges in accurate calculation of quantum systems with more than 10 bodies”

In order to achieve the goal of establish  “Unified Platform for Finite Quantum Many-body system” and to describe the formation and evolution of quantum matter in the universe from the fundamental particle level using this platform

• With Group A03, which is a group of experts in computational science, A01 group performs  accurate calculations beyond the 10-body problem involving different particles with the “Infinitesimally shifted  Gaussian Lobe expansion method (GEM)”  and developed by the project leader, which is the cornerstone of this research field.
• A01 group starts from the calculation of the boson 10-body problem and expands to the calculation of the Fermi 10-body problem and the 10-body problem including hetero particles.
• By giving information on  the binding energies and wavefunctions constructed by Group A01 to the group of large-scale shell model calculations and the group of density functional calculations, we aim to improve the accuracy of large-scale shell model calculations and density functional calculations, and to construct a platform for high-precision 100-body quantum many-body problem calculations.
• The group will apply this calculation method to the protonic molecule (Group B01) to elucidate the molecular structure of this molecule.
• In collaboration with the Hypernucleus Spectroscopy Experiment (Group B02), we will perform precise structure calculations of hypernuclei to determine the Baryon interactions  and clarify the internal structure of neutron stars.
• A01 group contributes to industry-academia collaboration by calculating the nuclear reaction cross section required for RANS (Group B04).