Medium-induced bosonic clusters in a Bose-Fermi mixture: Towards simulating cluster formations in neutron-rich matter

TL;DR

This paper explores how bosonic atoms can form clusters within a Fermi gas due to medium-induced interactions, providing insights relevant for ultracold atoms and neutron-rich matter simulations.

Contribution

It introduces a theoretical approach to study bosonic cluster formation mediated by fermions, including numerical calculations of binding energies in a one-dimensional system.

Findings

Bosonic clusters can form even with repulsive boson-boson interactions.

Fermion-mediated interactions enable cluster formation.

Results applicable to ultracold atomic systems and neutron-rich matter simulations.

Abstract

Considering bosonic atoms immersed in a dilute Fermi gas, we theoretically investigate medium-induced bosonic clusters associated with fermion-mediated two- and three-body interactions. Using the variational approach combined with the fermion-mediated interactions, we numerically calculate the binding energies of two- and three-body bosonic clusters in a one-dimensional system. It is found that the bosonic clusters can be formed even with a repulsive boson-boson interaction due to the fermion-mediated interactions. Our results would be relevant for ultracold atomic systems as well as analogue quantum simulations of alpha clusters in neutron-rich matter.