Scaling in the Fan of an Unconventional Quantum Critical Point
| dc.creator | Melko, Roger G. | |
| dc.creator | Kaul, Ribhu K. | |
| dc.date | 2007-07-19 | |
| dc.date | 2008-01-09 | |
| dc.date.accessioned | 2026-07-07T08:53:08Z | |
| dc.date.available | 2026-07-07T08:53:08Z | |
| dc.description | We present results of extensive finite-temperature Quantum Monte Carlo simulations on a SU(2) symmetric S=1/2 quantum antiferromagnet with a four-spin interaction [Sandvik, Phys. Rev. Lett. 98, 227202 (2007)]. Our simulations, which are free of the sign-problem and carried out on lattices containing in excess of 1.6 X 10^4 spins, indicate that the four-spin interaction destroys the Néel order at an unconventional z=1 quantum critical point, producing a valence-bond solid paramagnet. Our results are consistent with the `deconfined quantum criticality' scenario. | |
| dc.description | published version, minor changes | |
| dc.identifier | https://arxiv.org/abs/0707.2961 | |
| dc.identifier | http://arxiv.org/abs/0707.2961 | |
| dc.identifier | Phys. Rev. Lett. 100, 017203 (2008) | |
| dc.identifier | doi:10.1103/PhysRevLett.100.017203 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/145514 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Scaling in the Fan of an Unconventional Quantum Critical Point | |
| dc.type | text |