LETTER TO THE EDITOR: Solitons and vortices in ultracold fermionic gases
Abstract
We investigate the possibilities for the generation of solitons and vortices in a degenerate gas of neutral fermionic atoms. In analogy with the already experimentally demonstrated technique applied to a gaseous Bose-Einstein condensate we propose the phase engineering of a Fermi gas as a practical route to excited states with solitons and vortices. We stress that solitons and vortices appear even in a non-interacting fermionic gas. For solitons, in a system with a sufficiently large number of fermions and appropriate trap configuration, the Pauli blocking acts as the interaction between particles.
- Publication:
-
Journal of Physics B Atomic Molecular Physics
- Pub Date:
- July 2002
- DOI:
- 10.1088/0953-4075/35/14/101
- arXiv:
- arXiv:cond-mat/0103564
- Bibcode:
- 2002JPhB...35L.315K
- Keywords:
-
- Condensed Matter
- E-Print:
- 4 pages, 5 figures many new results