Atom-dimer scattering for confined ultracold fermion gases
| dc.creator | Mora, C. | |
| dc.creator | Egger, R. | |
| dc.creator | Gogolin, A. O. | |
| dc.creator | Komnik, A. | |
| dc.date | 2004-06-25 | |
| dc.date | 2004-09-17 | |
| dc.date.accessioned | 2026-07-07T06:26:14Z | |
| dc.date.available | 2026-07-07T06:26:14Z | |
| dc.description | We solve the three-body problem of an ultracold Fermi gas with parabolic confinement length $a_\perp$ and 3D scattering length $a$. On the two-body level, there is a Feshbach-type resonance at $a_\perp/a\approx 1.46$, and a dimer state for arbitrary $a_\perp/a$. The three-body problem is shown to be universal, an d described by the atom-dimer scattering length $a_{ad}$ and a range parameter $b_{ad}$. In the dimer limit $a_\perp/a\gg 1$, we find a repulsive zero-range atom-dimer interaction. For $a_\perp/a\ll -1$, however, the potential has long range, with $a_{ad}>0$ and $b_{ad}\gg a_{ad}$. There is no trimer state, and despite $a_{ad}=0$ at $a_\perp/a\approx 2.6$, there is no resonance enhancement of the interaction. | |
| dc.description | 5 pages, 2 figures; to appear in PRL (revised version) | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0406627 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0406627 | |
| dc.identifier | Phys. Rev. Lett. 93, 170403 (2004) | |
| dc.identifier | doi:10.1103/PhysRevLett.93.170403 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/97050 | |
| dc.subject | Statistical Mechanics | |
| dc.subject | Atomic Physics | |
| dc.subject | Quantum Physics | |
| dc.title | Atom-dimer scattering for confined ultracold fermion gases | |
| dc.type | text |