Interfaces, strings, and a soft mode in the square lattice quantum dimer model

D. Banerjee, M. Bögli, C. P. Hofmann, F. J. Jiang, P. Widmer, U. J. Wiese

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The quantum dimer model on the square lattice is a U(1) gauge theory that addresses aspects of the physics of high-Tc superconductors. Using a quantum Monte Carlo method, we show that the theory exists in a confining columnar valence bond solid phase. The interfaces separating distinct columnar phases display plaquette order, which, however, is not realized as a bulk phase. Static "electric" charges are confined by flux tubes that consist of multiple strands, each carrying a fractionalized flux 14. A soft pseudo-Goldstone mode (which becomes exactly massless at the Rokhsar-Kivelson point) extends deep into the columnar phase, with potential implications for high-Tc physics.

Original languageEnglish
Article number245143
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume90
Issue number24
DOIs
Publication statusPublished - 2014 Dec 24

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Dimers
strings
Physics
dimers
Fluxes
Electric charge
physics
electric charge
confining
strands
Superconducting materials
Gages
Monte Carlo method
solid phases
gauge theory
Monte Carlo methods
tubes
valence
Solid Bond

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Interfaces, strings, and a soft mode in the square lattice quantum dimer model. / Banerjee, D.; Bögli, M.; Hofmann, C. P.; Jiang, F. J.; Widmer, P.; Wiese, U. J.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 90, No. 24, 245143, 24.12.2014.

Research output: Contribution to journalArticle

Banerjee, D. ; Bögli, M. ; Hofmann, C. P. ; Jiang, F. J. ; Widmer, P. ; Wiese, U. J. / Interfaces, strings, and a soft mode in the square lattice quantum dimer model. In: Physical Review B - Condensed Matter and Materials Physics. 2014 ; Vol. 90, No. 24.
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