Stability of Bosonic atomic and molecular condensates near a Feshbach resonance
| dc.creator | Basu, Sourish | |
| dc.creator | Mueller, Erich J. | |
| dc.date | 2005-07-19 | |
| dc.date | 2006-03-30 | |
| dc.date.accessioned | 2026-07-07T06:41:23Z | |
| dc.date.available | 2026-07-07T06:41:23Z | |
| dc.description | We explore the Bose condensed phases of an atomic gas on the molecular side of a Feshbach resonance. In the absence of atom-molecule and molecule-molecule scattering, we show that the atomic condensate is either a saddle point of the free energy with energy always exceeding that of the molecular condensate, or has a negative compressibility (hence unstable to density fluctuations). Therefore no phase transition occurs between the atomic and molecular condensates. We also show that a repulsive molecule-molecule scattering can stabilize a sufficiently dense atomic condensate, leading to the possibility of a phase transition. We caution that 3-body processes may render this transition unobservable. | |
| dc.description | 4 pages, 2 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0507460 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0507460 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/101650 | |
| dc.subject | Other Condensed Matter | |
| dc.title | Stability of Bosonic atomic and molecular condensates near a Feshbach resonance | |
| dc.type | text |