Emergence of dark soliton signatures in a one-dimensional unpolarized attractive Fermi gas on a ring
Emergence of dark soliton signatures in a one-dimensional unpolarized attractive Fermi gas on a ring
The two-component Fermi gas with contact attractive interactions between different spin components can be described by the Yang-Gaudin model. Applying the Bethe ansatz approach, one finds analytical formulas for the system eigenstates that are uniquely parametrized by the solutions of the corresponding Bethe equations. Recent numerical studies of the so-called …