212 citations · 1.1k across the 11 of their papers we have counts for
7 papers · 1 filter
Correlations and confinement in non-planar two-dimensional dimer models
A. W. Sandvik, R. Moessner
We study classical hard-core dimer models on the square lattice with links extending beyond nearest-neighbors. Numerically, using a directed-loop Monte Carlo algorithm, we find tha…
Flux expulsion and greedy bosons: frustrated magnets at large N
O. Tchernyshyov, R. Moessner, S. L. Sondhi
We investigate the Sp(N) mean-field theory for frustrated quantum magnets. First, we establish some general properties of its solutions; in particular, for small spin we propose si…
Valence-bond crystal in a {111} slice of the pyrochlore antiferromagnet
Oleg Tchernyshyov, Hong Yao, R. Moessner
We investigate theoretically the ordering effect of quantum spin fluctuations in a Heisenberg antiferromagnet on a two-dimensional network of corner sharing tetrahedra. This networ…
Three dimensional resonating valence bond liquids and their excitations
R. Moessner, S. L. Sondhi
We show that there are two types of RVB liquid phases present in three-dimensional quantum dimer models, corresponding to the deconfining phases of U(1) and Z_2 gauge theories in d…
Bond order from disorder in the planar pyrochlore magnet
O. Tchernyshyov, O. A. Starykh, R. Moessner +1
We study magnetic order in the Heisenberg antiferromagnet on the checkerboard lattice, a two-dimensional version of the pyrochlore network with strong geometric frustration. By emp…
Spin-Peierls phases in pyrochlore antiferromagnets
Oleg Tchernyshyov, R. Moessner, S. L. Sondhi
In the highly frustrated pyrochlore magnet spins form a lattice of corner sharing tetrahedra. We show that the tetrahedral ``molecule'' at the heart of this structure undergoes a J…