Two-hole dynamics in spin ladders
| dc.creator | Jurecka, Christoph | |
| dc.creator | Brenig, Wolfram | |
| dc.date | 2001-07-17 | |
| dc.date | 2001-07-19 | |
| dc.date.accessioned | 2026-07-07T02:42:11Z | |
| dc.date.available | 2026-07-07T02:42:11Z | |
| dc.description | We present an analytic theory for the energy spectrum of a two-leg spin ladder doped with two holes. Starting from a pseudo-fermion-bond-boson representation of the corresponding $t_{1,2}-J_{1,2}$ Hamiltonian we apply a diagrammatic approach adapted to the limit of strong rung coupling, which includes both, the coupling of holes to the spin background as well as the two-hole interactions. The two-hole spectrum is calculated and the formation of bound states is discussed. Additionally the evolution of the spin gap of the ladder upon doping is analyzed. A comparison with existing exact diagonalization data is presented and good agreement is found. | |
| dc.description | 9 pages, 8 figures; added references | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0107365 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0107365 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/18040 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Two-hole dynamics in spin ladders | |
| dc.type | text |