Many-body molecule formation at a domain wall in a one-dimensional strongly interacting ultracold Fermi gas

We analyze how the presence of the bound state on top of strong intercomponent contact repulsion affects the dynamics of a two-component ultracold Fermi gas confined in a one-dimensional harmonic trap. By performing full many-body numerical calculations, we retrieve dynamics of an initially phase-separated state that has been utilized to excite the spin-dipole mode in experimental settings. We observe an appearance of pairing correlations at the domain wall, heralding the onset of a molecular fraction at the interlayer between the components.

Automated summary

This study analyzes the dynamics of a two-component ultracold Fermi gas under the influence of strong intercomponent contact repulsion and demonstrates its potential application in exciting spin-dipole modes through experimental verification.