Quantum degenerate Bose-Fermi mixtures on 1-D optical lattices
| dc.creator | Sengupta, Pinaki | |
| dc.creator | Pryadko, Leonid P. | |
| dc.date | 2005-12-12 | |
| dc.date.accessioned | 2026-07-07T06:53:17Z | |
| dc.date.available | 2026-07-07T06:53:17Z | |
| dc.description | We combine model mapping, exact spectral bounds, and a quantum Monte Carlo method to study the ground state phases of a mixture of ultracold bosons and spin-polarized fermions in a one-dimensional optical lattice. The exact boundary of the boson-demixing transition is obtained from the Bethe Ansatz solution of the standard Hubbard model. We prove that along a symmetry plane in the parameter space, the boson-fermion mixed phase is stable at all densities. This phase is a two-component Luttinger liquid for weak couplings or for incommensurate total density, otherwise it has a charge gap but retains a gapless mode of mixture composition fluctuations. The static density correlations are studied in these two limits and shown to have markedly different features. | |
| dc.description | 4 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0512241 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0512241 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/105528 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Quantum degenerate Bose-Fermi mixtures on 1-D optical lattices | |
| dc.type | text |