TY - JOUR
T1 - The (2 + 1)-d U(1) quantum link model masquerading as deconfined criticality
AU - Banerjee, D.
AU - Jiang, F. J.
AU - Widmer, P.
AU - Wiese, U. J.
PY - 2013/12
Y1 - 2013/12
N2 - The (2 + 1)-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 (2 + 1)-d RP(1) effective field theory, perturbed by an 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.
AB - The (2 + 1)-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 (2 + 1)-d RP(1) effective field theory, perturbed by an 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.
KW - quantum Monte Carlo simulations
KW - quantum phase transitions (theory)
UR - http://www.scopus.com/inward/record.url?scp=84891370889&partnerID=8YFLogxK
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U2 - 10.1088/1742-5468/2013/12/P12010
DO - 10.1088/1742-5468/2013/12/P12010
M3 - Article
AN - SCOPUS:84891370889
SN - 1742-5468
VL - 2013
JO - Journal of Statistical Mechanics: Theory and Experiment
JF - Journal of Statistical Mechanics: Theory and Experiment
IS - 12
M1 - P12010
ER -