Random Antiferromagnetic SU(N) Spin Chains
| dc.creator | Hoyos, J. A. | |
| dc.creator | Miranda, E. | |
| dc.date | 2004-06-04 | |
| dc.date | 2004-11-11 | |
| dc.date.accessioned | 2026-07-07T02:58:29Z | |
| dc.date.available | 2026-07-07T02:58:29Z | |
| dc.description | We analyze random isotropic antiferromagnetic SU(N) spin chains using the real space renormalization group. We find that they are governed at low energies by a universal infinite randomness fixed point different from the one of random spin-1/2 chains. We determine analytically the important exponents: the energy-length scale relation is $Ω\sim\exp(-L^ψ)$, where $ψ=1/N$, and the mean correlation function is given by $\bar{C_{ij}}\sim(-1)^{i-j}/|i-j|^ϕ$, where $ϕ=4/N$. Our analysis shows that the infinite-N limit is unable to capture the behavior obtained at any finite N. | |
| dc.description | 4 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0406130 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0406130 | |
| dc.identifier | Phys. Rev. B 70, 180401(R) (2004) | |
| dc.identifier | doi:10.1103/PhysRevB.70.180401 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/24115 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Disordered Systems and Neural Networks | |
| dc.title | Random Antiferromagnetic SU(N) Spin Chains | |
| dc.type | text |