Crossover from 2D to 3D in a Weakly Interacting Fermi Gas
Authors:
- P. DykePDP. Dyke
- E. D. KuhnleEKE. D. Kuhnle
- S. WhitlockSWS. Whitlock
- H. HuHHH. Hu
- M. MarkMMM. Mark
- S. HoinkaSHS. Hoinka
- M. LinghamMLM. Lingham
- P. HannafordPHP. Hannaford
- C. J. ValeCVC. J. Vale
- 11 March 2011
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 106 (10) , 105304
Abstract
We have studied the transition from two to three dimensions in a low temperature weakly interacting Li6 Fermi gas. Below a critical atom number N2D only the lowest transverse vibrational state of a highly anisotropic oblate trapping potential is occupied and the gas is two~dimensional. Above N2D the Fermi gas enters the quasi-2D regime where shell structure associated with the filling of individual transverse oscillator states is apparent. This dimensional crossover is demonstrated through measurements of the cloud size and aspect ratio versus atom number.Keywords
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