Quantum phase transition and sliding Luttinger liquid in coupled t-J chains
| dc.creator | Moukouri, S. | |
| dc.date | 2005-04-13 | |
| dc.date.accessioned | 2026-07-07T03:04:42Z | |
| dc.date.available | 2026-07-07T03:04:42Z | |
| dc.description | Using a recently proposed perturbative numerical renormalization-group algorithm, we explore the connection between quantum criticality and the emergence of Luttinger liquid physics in $t-J$ chains coupled by frustrated interactions. This study is built on an earlier finding that at the maximally frustrated point, the ground state of weakly-coupled Heisenberg chains is disordered, the transverse exchanges being irrelevant. This result is extended here to transverse couplings up to $J_{\perp}=0.6$, and we argue that it may also be valid at the isotropic point. A finite size analysis of coupled Heisenberg chains in the vicinity of the maximally frustrated point confirms that the transverse spin-spin correlations decay exponentially while the longitudinal ones revert to those of decoupled chains. We find that this behavior persists upon moderate hole doping $x \alt 0.75$. For larger doping, the frustration becomes inactive and the quantum critical point is suppressed. | |
| dc.description | 13 pages, 24 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0504306 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0504306 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/26186 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Quantum phase transition and sliding Luttinger liquid in coupled t-J chains | |
| dc.type | text |