Abstract
We examine the spin asymmetry of ground states for two-dimensional, harmonically trapped two-component gases of fermionic atoms at zero temperature with weakly repulsive short-range interactions. Our main result is that, in contrast to the three-dimensional case, in two dimensions a non-trivial spin-asymmetric phase can only be caused by the shell structure. A simple, qualitative description is given in terms of an approximate single-particle model, comparing well to the standard results of Hartree-Fock or direct diagonalization methods.
| Original language | English |
|---|---|
| Pages (from-to) | 2653-2660 |
| Journal | Journal of Physics B: Atomic, Molecular and Optical Physics |
| Volume | 40 |
| Issue number | 13 |
| DOIs | |
| Publication status | Published - 2007 |
Bibliographical note
The information about affiliations in this record was updated in December 2015.The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)
Subject classification (UKÄ)
- Physical Sciences