The (2+1)-d U(1) Quantum Link Model Masquerading as Deconfined Criticality
Strongly Correlated Electrons
2015-06-15 v1 High Energy Physics - Lattice
Quantum Physics
Abstract
The -d U(1) quantum link model is a gauge theory, amenable to quantum simulation, with a spontaneously broken SO(2) symmetry emerging at a quantum phase transition. Its low-energy physics is described by a -d effective field theory, perturbed by a dangerously irrelevant SO(2) breaking operator, which prevents the interpretation of the emergent pseudo-Goldstone boson as a dual photon. At the quantum phase transition, the model mimics some features of deconfined quantum criticality, but remains linearly confining. Deconfinement only sets in at high temperature.
Cite
@article{arxiv.1303.6858,
title = {The (2+1)-d U(1) Quantum Link Model Masquerading as Deconfined Criticality},
author = {D. Banerjee and F. -J. Jiang and P. Widmer and U. -J. Wiese},
journal= {arXiv preprint arXiv:1303.6858},
year = {2015}
}
Comments
4.5 pages, 6 figures