Fabbri, N. (2011) Probing correlations of gaseous microwires in lattice potentials via inelastic light scattering. Il nuovo cimento C, 34 (5). pp. 75-84. ISSN 1826-9885
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Abstract
In this work, inelastic light-scattering (Bragg spectroscopy) is used to study strongly correlated phases of ultracold 1D gases in optical lattices. We investigate the crossover from correlated superfluids to Mott insulators. Light-scattering creates in the system elementary excitations with non-zero momentum, and the response of the correlated gases is in the linear regime. This allows for extracting information about the atomic many-body state in terms of its particle-hole excitations, as common in solid-state physics. In particular, we characterize the Mott state both via intra-band and inter-band spectroscopy, the former giving access to the dynamical structure factor S(q, ω) and the latter to the one-particle spectral function A(q, ω).
| Item Type: | Article |
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| Uncontrolled Keywords: | Bose-Einstein condensates in optical potentials ; Dynamic properties of condensates; excitations, and superfluid flow |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 08 Apr 2020 16:36 |
| Last Modified: | 08 Apr 2020 16:36 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/17454 |
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