Chiral Symmetry Restoration in Anisotropic QED(3)
| dc.creator | Thomas, Iorwerth Owain | |
| dc.creator | Hands, Simon | |
| dc.date | 2006-09-28 | |
| dc.date.accessioned | 2026-07-07T10:24:47Z | |
| dc.date.available | 2026-07-07T10:24:47Z | |
| dc.description | We present results from a Monte Carlo simulation of non-compact lattice QED in 3 dimensions in which an explicit anisotropy $κ$ between $x$ and $y$ hopping terms has been introduced into the action. Using a parameter set corresponding to broken chiral symmetry in the isotropic limit $κ=1$, we study the chiral condensate on $16^3$, $20^3$, and $24^3$ lattices as $κ$ is varied, and fit the data to an equation of state which incorporates anisotropic volume corrections. The value $κ_c$ at which chiral symmetry ispparently restored is strongly volume-dependent, suggesting that the transition may be a crossover rather than a true phase transition. In addition we present results on $16^3$ lattices for the scalar meson propagator, and for the Landau gauge-fixed fermion propagator. The scalar mass approaches the pion mass at large $κ$, consistent with chiral symmetry restoration, but the fermion remains massive at all values of $κ$ studied, suggesting that strong infra-red fluctuations persist into the chirally symmetric regime. Implications for models of high-$T_c$ superconductivity based on anisotropic QED$_3$ are discussed. | |
| dc.description | 39 pages, 17 figures, submitted to Phys Rev B | |
| dc.identifier | https://arxiv.org/abs/hep-lat/0609062 | |
| dc.identifier | http://arxiv.org/abs/hep-lat/0609062 | |
| dc.identifier | Phys.Rev.B75:134516,2007 | |
| dc.identifier | doi:10.1103/PhysRevB.75.134516 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/176314 | |
| dc.subject | High Energy Physics - Lattice | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Superconductivity | |
| dc.title | Chiral Symmetry Restoration in Anisotropic QED(3) | |
| dc.type | text |