Ultracold Bose gases in time-dependent 1D superlattices: response and quasimomentum structure
| dc.creator | Hild, Markus | |
| dc.creator | Schmitt, Felix | |
| dc.creator | Türschmann, Ilona | |
| dc.creator | Roth, Robert | |
| dc.date | 2007-06-28 | |
| dc.date | 2007-08-14 | |
| dc.date.accessioned | 2026-07-07T09:47:02Z | |
| dc.date.available | 2026-07-07T09:47:02Z | |
| dc.description | The response of ultracold atomic Bose gases in time-dependent optical lattices is discussed based on direct simulations of the time-evolution of the many-body state in the framework of the Bose-Hubbard model. We focus on small-amplitude modulations of the lattice potential as implemented in several recent experiment and study different observables in the region of the first resonance in the Mott-insulator phase. In addition to the energy transfer we investigate the quasimomentum structure of the system which is accessible via the matter-wave interference pattern after a prompt release. We identify characteristic correlations between the excitation frequency and the quasimomentum distribution and study their structure in the presence of a superlattice potential. | |
| dc.description | 4 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/0706.4260 | |
| dc.identifier | http://arxiv.org/abs/0706.4260 | |
| dc.identifier | Phys. Rev. A 76, 053614 (2007) | |
| dc.identifier | doi:10.1103/PhysRevA.76.053614 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/163735 | |
| dc.subject | Statistical Mechanics | |
| dc.title | Ultracold Bose gases in time-dependent 1D superlattices: response and quasimomentum structure | |
| dc.type | text |