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TT: Fachverband Tiefe Temperaturen
TT 55: Low-Dimensional Systems: 2D – Theory
TT 55.3: Talk
Wednesday, March 18, 2015, 10:00–10:15, H 3010
Phase diagram of an extended quantum dimer model on the hexagonal lattice — Thiago Milanetto Schlittler1, •Thomas Barthel2, Grégoire Misguich3, Julien Vidal1, and Rémy Mosseri1 — 1LPTMC, Université Paris-6 — 2LPTMS, Université Paris-Sud — 3IPhT, CEA Saclay
We introduce a generalized quantum dimer model on the hexagonal lattice. In addition to the standard Rokhsar-Kivelson Hamiltonian, it contains a competing potential term. The phase diagram is studied by means of quantum Monte-Carlo simulations, variational ansätze and perturbation theory. The model displays a rich phase diagram and, in particular, provides a microscopic realization for the Cantor deconfinement scenario – a cascade of phases with varying flux.