Phase diagram of imbalanced fermions in optical lattices
| dc.creator | Cui, Xiaoling | |
| dc.creator | Wang, Yupeng | |
| dc.date | 2009-03-13 | |
| dc.date | 2009-05-23 | |
| dc.date.accessioned | 2026-07-07T13:17:27Z | |
| dc.date.available | 2026-07-07T13:17:27Z | |
| dc.description | The zero-temperature phase diagrams of imbalanced fermions in 3D optical lattices are investigated to evaluate the validity of the Fermi-Hubbard model. It is found that depending on the filling factor, s-wave scattering strength and lattice potential, the system may fall into the normal($N$) phase, magnetized superfluid(SF$_M$) or phase separation of $N$ and BCS state. By tuning these parameters, the superfluidity could be favorable by enhanced effective couplings or suppressed by the increased band gap. The phase profiles in the presence of a harmonic trap are also investigated under LDA, which show some exotic shell structures compared to those without the optical lattice. | |
| dc.description | 5 pages, 4 figures, typos and references added | |
| dc.identifier | https://arxiv.org/abs/0903.2346 | |
| dc.identifier | http://arxiv.org/abs/0903.2346 | |
| dc.identifier | Phys. Rev. B 79, 180509(R) (2009) | |
| dc.identifier | doi:10.1103/PhysRevB.79.180509 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/231119 | |
| dc.subject | Quantum Gases | |
| dc.subject | Superconductivity | |
| dc.title | Phase diagram of imbalanced fermions in optical lattices | |
| dc.type | text |