61 citations · 264 across the 15 of their papers we have counts for
15 papers
Critical SO(5) scaling of entanglement entropy at honeycomb lattice deconfined criticality
Sankalp Kumar, Jonathan D'Emidio, Sumiran Pujari
The deconfined quantum critical point (DQCP) in square lattice S=1/2 quantum antiferromagnets has been extensively studied with a large body of evidence pointing to a weakly first-…
Pseudocriticality in antiferromagnetic spin chains
Sankalp Kumar, Sumiran Pujari, Jonathan D'Emidio
Weak first-order pseudocriticality with approximate scale invariance has been observed in a variety of settings, including the intriguing case of deconfined criticality in 2+1 dime…
Entanglement entropy and deconfined criticality: emergent SO(5) symmetry and proper lattice bipartition
Jonathan D'Emidio, Anders W. Sandvik
We study the Rényi entanglement entropy (EE) of the two-dimensional - model, the emblematic quantum spin model of deconfined criticality at the phase transition between antif…
Lee-Yang zeros at and deconfined quantum critical points
Jonathan D'Emidio
Lee-Yang theory, based on the study of zeros of the partition function, is widely regarded as a powerful and complimentary approach to the study of critical phenomena and forms a f…
Stable computation of entanglement entropy for 2D interacting fermion systems
Gaopei Pan, Yuan Da Liao, Weilun Jiang +3
There is no doubt that the information hidden in entanglement entropy (EE), for example, the -th order Rényi EE, i.e., $S^{A}_n=\frac{1}{1-n}\ln \Tr (ρ_A^n)$ where $ρ_A=\mathrm{…
Universal features of entanglement entropy in the honeycomb Hubbard model
Jonathan D'Emidio, Roman Orus, Nicolas Laflorencie +1
The entanglement entropy is a unique probe to reveal universal features of strongly interacting many-body systems. In two or more dimensions these features are subtle, and detectin…
Diagnosing weakly first-order phase transitions by coupling to order parameters
Jonathan D'Emidio, Alexander A. Eberharter, Andreas M. Läuchli
The hunt for exotic quantum phase transitions described by emergent fractionalized degrees of freedom coupled to gauge fields requires a precise determination of the fixed point st…
Reduction of the sign problem near in quantum Monte Carlo simulations
Jonathan D'Emidio, Stefan Wessel, Frédéric Mila
Building on a recent investigation of the Shastry-Sutherland model [S. Wessel et al., Phys. Rev. B 98, 174432 (2018)], we develop a general strategy to eliminate the Monte Carlo si…
Kagome model for a quantum spin liquid
Matthew S. Block, Jonathan D'Emidio, Ribhu K. Kaul
We present a study of a simple model antiferromagnet consisting of a sum of nearest neighbor SO() singlet projectors on the Kagome lattice. Our model shares some features with t…
Entanglement entropy from nonequilibrium work
Jonathan D'Emidio
The Rényi entanglement entropy in quantum many-body systems can be viewed as the difference in free energy between partition functions with different trace topologies. We introduce…
First-order Néel-cVBS transition in a model square lattice antiferromagnet
Julia Wildeboer, Nisheeta Desai, Jonathan D'Emidio +1
We study the Néel to four-fold columnar valence bond solid (cVBS) quantum phase transition in a sign free square lattice model. This is the same kind of transition that for $…
Quadrupolar quantum criticality on a fractal
Jonathan D'Emidio, Simon Lovell, Ribhu K. Kaul
We study the ground state ordering of quadrupolar ordered magnets as a function of spin dilution probability on the triangular lattice. In sharp contrast to the ordering…
New easy-plane fixed points
Jonathan D'Emidio, Ribhu K. Kaul
We study fixed points of the easy-plane field theory by combining quantum Monte Carlo simulations of lattice models of easy-plane SU() superfluids with field…
First-order superfluid to valence bond solid phase transitions in easy-plane SU() magnets for small-
Jonathan D'Emidio, Ribhu K. Kaul
We consider the easy-plane limit of bipartite SU() Heisenberg Hamiltonians which have a fundamental representation on one sublattice and the conjugate to fundamental on the othe…
Rényi entanglement entropy of critical SU() spin chains
Jonathan D'Emidio, Matthew S. Block, Ribhu K. Kaul
We present a study of the scaling behavior of the Rényi entanglement entropy (REE) in SU() spin chain Hamiltonians, in which all the spins transform under the fundamental repres…