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Disorder Operators and their Descendants
Eduardo Fradkin
I review the concept of a {\em disorder operator}, introduced originally by Kadanoff in the context of the two-dimensional Ising model. Disorder operators acquire an expectation va…
Entanglement Entropy and Mutual Information of Circular Entangling Surfaces in 2 + 1-dimensional Quantum Lifshitz Model
Tianci Zhou, Xiao Chen, Thomas Faulkner +1
We investigate the entanglement entropy (EE) of circular entangling cuts in the 2+1-dimensional quantum Lifshitz model, whose ground state wave function is a spatially conformal in…
Universal Behavior of Entanglement in 2D Quantum Critical Dimer Models
Benjamin Hsu, Eduardo Fradkin
We examine the scaling behavior of the entanglement entropy for the 2D quantum dimer model (QDM) at criticality and derive the universal finite sub-leading correction . We…
Universal entanglement entropy in 2D conformal quantum critical points
Benjamin Hsu, Michael Mulligan, Eduardo Fradkin +1
We study the scaling behavior of the entanglement entropy of two dimensional conformal quantum critical systems, i.e. systems with scale invariant wave functions. They include two-…
On bipartite Rokhsar-Kivelson points and Cantor deconfinement
Eduardo Fradkin, David A. Huse, R. Moessner +2
Quantum dimer models on bipartite lattices exhibit Rokhsar-Kivelson (RK) points with exactly known critical ground states and deconfined spinons. We examine generic, weak, perturba…