Supersymmetric Mean-Field Theory of t-J Model
| dc.creator | Cheng, Chi-Ho | |
| dc.creator | Ng, T. K. | |
| dc.date | 1999-08-11 | |
| dc.date.accessioned | 2026-07-07T03:14:11Z | |
| dc.date.available | 2026-07-07T03:14:11Z | |
| dc.description | The supersymmetric formulation of t-J model is studied in this paper at the mean-field level where $δ$-T phase diagram is computed. We find that slave-fermion-like spiral phase is stable at low doping concentration, and the slave-boson-like d-wave fermionic spin pairing state becomes energetically favourable when $δ\geq$ 0.23. An improvement in free energy using Gutzwiller's method lowers the transition doping concentration to 0.06. We also point out the existence of new branches of excitations in the supersymmetric theory. | |
| dc.description | 11 pages and 2 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9908161 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9908161 | |
| dc.identifier | Europhysics Letters 52, 87 (2000) | |
| dc.identifier | doi:10.1209/epl/i2000-00408-4 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/29582 | |
| dc.subject | Superconductivity | |
| dc.title | Supersymmetric Mean-Field Theory of t-J Model | |
| dc.type | text |