On the specific heat of a fermionic atomic cloud in the unitary regime
| dc.creator | Bulgac, Aurel | |
| dc.date | 2005-03-01 | |
| dc.date | 2005-10-21 | |
| dc.date.accessioned | 2026-07-07T12:44:17Z | |
| dc.date.available | 2026-07-07T12:44:17Z | |
| dc.description | In the unitary regime, when the scattering amplitude greatly exceeds in magnitude the average inter-particle separation, and below the critical temperature thermal properties of an atomic fermionic cloud are governed by the collective modes, specifically the Bogoliubov-Anderson sound modes. The specific heat of an atomic cloud in a elongated trap in particular has a rather compex temperature dependence, which changes from an exponential behavior at very low temperatures ($T\ll\hbarω_{||}$), to $\propto T$ for $\hbarω_{||}\ll T \ll \hbarω_\perp$ and then continuosly to $\propto T^4$ at temperatures just below the critical temperature, when the surface modes play a dominant role. Only the low ($\hbarω_{||} \ll T \ll \hbarω_\perp$) and high ($\hbarω_\perp \ll T < T_c$) temperature power laws are well defined. For the intermediate temperatures one can introduce at most a gradually increasing with temperature exponent. | |
| dc.description | 4 pages | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0503024 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0503024 | |
| dc.identifier | Phys.Rev.Lett.95:140403,2005 | |
| dc.identifier | doi:10.1103/PhysRevLett.95.140403 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/220716 | |
| dc.subject | Statistical Mechanics | |
| dc.title | On the specific heat of a fermionic atomic cloud in the unitary regime | |
| dc.type | text |