Superfluid-Insulator Transition and Fermion Pairing in Bose-Fermi Mixtures
| dc.creator | Yang, Kun | |
| dc.date | 2007-07-28 | |
| dc.date | 2008-02-20 | |
| dc.date.accessioned | 2026-07-07T09:21:37Z | |
| dc.date.available | 2026-07-07T09:21:37Z | |
| dc.description | It is well known that bosons on an optical lattice undergo a second-order superfluid-insulator transition (SIT) when the lattice potential increases. In this paper we study SIT when fermions coexist with the bosons. We find that the critical properties of particle-hole symmetric SIT with dynamical exponent z=1 is modified when fermions are present; it either becomes a fluctuation-driven first order transition or a different second-order transition. On the other hand the more generic particle-hole asymmetric (with z=2) SIT is stable against coupling with fermions. We also discuss pairing interaction between fermions mediated by quantum critical fluctuations near SIT. | |
| dc.description | Expanded version as appeared in print | |
| dc.identifier | https://arxiv.org/abs/0707.4189 | |
| dc.identifier | http://arxiv.org/abs/0707.4189 | |
| dc.identifier | Phys. Rev. B 77, 085115 (2008) | |
| dc.identifier | doi:10.1103/PhysRevB.77.085115 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/155089 | |
| dc.subject | Superconductivity | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Superfluid-Insulator Transition and Fermion Pairing in Bose-Fermi Mixtures | |
| dc.type | text |