Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2011-06-09
New J.Phys.13:085001,2011
Physics
Condensed Matter
Statistical Mechanics
22 pages, 12 figures, fixed references and minor typos
Scientific paper
10.1088/1367-2630/13/8/085001
We study the mechanism of loop condensation in the quantum dimer model on the triangular lattice. The triangular lattice quantum dimer model displays a topologically ordered quantum liquid phase in addition to conventionally ordered phases with broken symmetry. In the context of systems with extended loop-like degrees of freedom, the formation of such topological order can be described in terms of loop condensation. Using Monte Carlo calculations with local and directed-loop updates, we compute geometric properties of the transition graph loop distributions of several triangular lattice quantum dimer wavefunctions that display dimer-liquid to dimer-crystal transitions and characterize these in terms of loop condensation.
Herdman C. M.
Whaley Birgitta K.
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