Separability and entanglement of resonating valence-bond states

G Parez, C Berthiere, W Witczak-Krempa - SciPost Physics, 2023 - scipost.org
We investigate separability and entanglement of Rokhsar-Kivelson (RK) states and
resonating valence-bond (RVB) states. These states play a prominent role in condensed …

Columnar order and Ashkin-Teller criticality in mixtures of hard squares and dimers

K Ramola, K Damle, D Dhar - Physical review letters, 2015 - APS
We show that critical exponents of the transition to columnar order in a mixture of 2× 1
dimers and 2× 2 hard squares on the square lattice depends on the composition of the …

Entanglement in gapless resonating-valence-bond states

JM Stéphan, H Ju, P Fendley… - New Journal of Physics, 2013 - iopscience.iop.org
We study resonating-valence-bond (RVB) states on the square lattice of spins and of dimers,
as well as SU (N)-invariant states that interpolate between the two. These states are ground …

Topological resonating-valence-bond spin liquid on the square lattice

JY Chen, D Poilblanc - Physical Review B, 2018 - APS
A one-parameter family of long-range resonating-valence-bond (RVB) state on the square
lattice was previously proposed to describe a critical spin liquid (SL) phase of the spin-1/2 …

Ashkin-Teller phase transition and multicritical behavior in a classical monomer-dimer model

S Morita, HY Lee, K Damle, N Kawashima - Physical Review Research, 2023 - APS
We use Monte Carlo simulations and tensor network methods to study a classical monomer-
dimer model on the square lattice with a hole (monomer) fugacity z, an aligning dimer-dimer …

Interacting double dimer model on the square lattice

N Wilkins, S Powell - Physical Review B, 2020 - APS
We study phases and transitions of the square-lattice double dimer model, consisting of two
coupled replicas of the classical dimer model. As on the cubic lattice, we find a thermal …

[HTML][HTML] Exact solution of the 2d dimer model: Corner free energy, correlation functions and combinatorics

N Allegra - Nuclear Physics B, 2015 - Elsevier
In this work, some classical results of the pfaffian theory of the dimer model based on the
work of Kasteleyn, Fisher and Temperley are introduced in a fermionic framework. Then we …

Dulmage-mendelsohn percolation: Geometry of maximally packed dimer models and topologically protected zero modes on site-diluted bipartite lattices

R Bhola, S Biswas, MM Islam, K Damle - Physical Review X, 2022 - APS
The classic combinatorial construct of maximum matchings probes the random geometry of
regions with local sublattice imbalance in a site-diluted bipartite lattice. We demonstrate that …

Robustness of critical U (1) spin liquids and emergent symmetries in tensor networks

H Dreyer, L Vanderstraeten, JY Chen, R Verresen… - Physical Review B, 2024 - APS
We study the response of critical resonating valence bond (RVB) spin liquids to doping with
longer-range singlets, and more generally of U (1)-symmetric tensor networks to …

Coexistence of Long-Range and Algebraic Correlations for<? format?> Short-Range Valence-Bond Wave Functions in Three Dimensions

AF Albuquerque, F Alet, R Moessner - Physical Review Letters, 2012 - APS
We investigate nearest-neighbor valence-bond wave functions on bipartite three-
dimensional lattices. By performing large-scale Monte Carlo simulations, we find that long …