Variational study of the one dimensional t-J model
| dc.creator | Yang, Hong-Yu | |
| dc.creator | Li, Tao | |
| dc.date | 2006-04-20 | |
| dc.date.accessioned | 2026-07-07T07:05:39Z | |
| dc.date.available | 2026-07-07T07:05:39Z | |
| dc.description | We find the Gutzwiller projected Fermi sea wave function(GWF) has the correct phase structure to describe the kink nature of the doped holes in the ground state of the one dimensional $t-J$ model. We find the failure of the GWF for general value of $J/t$ and electron density $n$ can be attributed to the residual charge correlation in the ground state. We find such residual charge correlation is well described by a XXZ-type effective Hamiltonian. Based on these observations, a Pfaffian-type variational wave function is proposed and is found to reproduce correctly the global phase diagram and corresponding correlation functions of the one dimensional $t-J$ model, including the Luther-Emery phase in the low electron density and large $J/t$ region. | |
| dc.description | 8 pages, 8 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0604491 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0604491 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/109738 | |
| dc.subject | Superconductivity | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Variational study of the one dimensional t-J model | |
| dc.type | text |