### Abstract

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.

Original language | English |
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Article number | P12010 |

Journal | Journal of Statistical Mechanics: Theory and Experiment |

Volume | 2013 |

Issue number | 12 |

DOIs | |

Publication status | Published - 2013 Dec 1 |

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### Keywords

- quantum Monte Carlo simulations
- quantum phase transitions (theory)

### ASJC Scopus subject areas

- Statistical and Nonlinear Physics
- Statistics and Probability
- Statistics, Probability and Uncertainty

### Cite this

*Journal of Statistical Mechanics: Theory and Experiment*,

*2013*(12), [P12010]. https://doi.org/10.1088/1742-5468/2013/12/P12010

**The (2 + 1)-d U(1) quantum link model masquerading as deconfined criticality.** / Banerjee, D.; Jiang, F. J.; Widmer, P.; Wiese, U. J.

Research output: Contribution to journal › Article

*Journal of Statistical Mechanics: Theory and Experiment*, vol. 2013, no. 12, P12010. https://doi.org/10.1088/1742-5468/2013/12/P12010

}

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 - 2013/12/1

Y1 - 2013/12/1

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

UR - http://www.scopus.com/inward/citedby.url?scp=84891370889&partnerID=8YFLogxK

U2 - 10.1088/1742-5468/2013/12/P12010

DO - 10.1088/1742-5468/2013/12/P12010

M3 - Article

AN - SCOPUS:84891370889

VL - 2013

JO - Journal of Statistical Mechanics: Theory and Experiment

JF - Journal of Statistical Mechanics: Theory and Experiment

SN - 1742-5468

IS - 12

M1 - P12010

ER -