Condensed phase of converting boson-fermion mixtures
| dc.creator | Alexandrov, A. S. | |
| dc.date | 2004-02-04 | |
| dc.date.accessioned | 2026-07-07T02:56:17Z | |
| dc.date.available | 2026-07-07T02:56:17Z | |
| dc.description | Theory of a condensed state of hybridised bosons and fermions is developed. Normal and anomalous Green's functions are obtained diagrammatically and analytically using the Hamiltonian of the boson-fermion model (BFM). A pairing of bosons analogous to the Cooper pairing of fermions is found. There are three coupled condensates in the model, described by the off-diagonal single-particle boson, pair-fermion and pair-boson fields. The Gor'kov expansion in the strength of the order parameter near the transition yields no linear homogeneous term in the Ginzburg-Landau equation, and the infinite Levanyuk-Ginzburg parameter, Gi, which indicates that previous mean-field discussions of BFM are flawed. | |
| dc.description | 4 pages, 2 figures, spelling corrected | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0402123 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0402123 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/23265 | |
| dc.subject | Superconductivity | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Condensed phase of converting boson-fermion mixtures | |
| dc.type | text |