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Topological order and the deconfinement transition in the (2+1)-dimensional compact Abelian Higgs model
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Statistical Physics.ORCID iD: 0000-0002-9881-7857
2005 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 72, no 17Article in journal (Refereed) Published
Abstract [en]

We study an Abelian compact gauge theory minimally coupled to bosonic matter with charge q, which may undergo a confinement-deconfinement transition in 2+1 dimensions. The transition is analyzed using a nonlocal order parameter W, which is related to large Wilson loops for fractional charges. We map the model to a dual representation with no gauge field but only a global q-state clock symmetry and show that W corresponds to the domain wall energy of that model. W is also directly connected to the concept of topological order. We exploit these facts in Monte Carlo simulations to study the detailed nature of the deconfinement transition.

Place, publisher, year, edition, pages
2005. Vol. 72, no 17
Keyword [en]
large-n expansion, quantum antiferromagnets, gauge-theories, superconductors, spin, confinement, separation, liquid, fields, states
Identifiers
URN: urn:nbn:se:kth:diva-15210DOI: 10.1103/PhysRevB.72.174515ISI: 000233603500112Scopus ID: 2-s2.0-29544436551OAI: oai:DiVA.org:kth-15210DiVA: diva2:333251
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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Lidmar, Jack

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