Bound states in a quasi-two-dimensional Fermi gas.

We consider the problem of N identical fermions of mass m(↑) and one distinguishable particle of mass m(↓) interacting via short-range interactions in a confined quasi-two-dimensional (quasi-2D) geometry. For N=2 and mass ratios m(↑)/m(↓)<13.6, we find non-Efimov trimers that smoothly evolve from 2D to 3D. In the limit of strong 2D confinement, we show that… CONTINUE READING