90 citations · 813 across the 42 of their papers we have counts for
15 papers · 1 filter
Extracting subleading corrections in entanglement entropy at quantum phase transitions
Menghan Song, Jiarui Zhao, Zi Yang Meng +2
We systematically investigate the finite size scaling behavior of the Rényi entanglement entropy (EE) of several representative 2d quantum many-body systems between a subregion and…
Dimensionality crossover to 2D vestigial nematicity from 3D zigzag antiferromagnetism in an XY-type honeycomb van der Waals magnet
Zeliang Sun, Gaihua Ye, Mengqi Huang +12
Fluctuations and disorder effects are substantially enhanced in reduced dimensionalities. While they are mostly considered as the foe for long-range orders, fluctuations and disord…
Deconfined quantum critical point lost in pressurized SrCu2(BO3)2
Jing Guo, Pengyu Wang, Cheng Huang +11
In the field of correlated electron materials, the relation between the resonating spin singlet and antiferromagnetic states has long been an attractive topic for understanding of…
Spectral evidence for Dirac spinons in a kagome lattice antiferromagnet
Zhenyuan Zeng, Chengkang Zhou, Honglin Zhou +10
Emergent quasiparticles with a Dirac dispersion in condensed matter systems can be described by the Dirac equation for relativistic electrons, in analogy with Dirac particles in hi…
Resummation-based Quantum Monte Carlo for Entanglement Entropy Computation
Menghan Song, Ting-Tung Wang, Zi Yang Meng
Based on the recently developed resummation-based quantum Monte Carlo method for the SU() spin and loop-gas models, we develop a new algorithm, dubbed ResumEE, to compute the en…
Relevant long-range interaction of the entanglement Hamiltonian emerges from a short-range gapped system
Chuhao Li, Rui-Zhen Huang, Yi-Ming Ding +3
Beyond the Li-Haldane-Poilblanc conjecture, we find the entanglement Hamiltonian (EH) is actually not closely similar to the original Hamiltonian on the virtual edge. Unexpectedly,…
Disorder Operator and Rényi Entanglement Entropy of Symmetric Mass Generation
Zi Hong Liu, Yuan Da Liao, Gaopei Pan +8
In recent years a consensus has gradually been reached that the previously proposed deconfined quantum critical point (DQCP) for spin-1/2 systems, an archetypal example of quantum…
Evolution of entanglement entropy at SU() deconfined quantum critical points
Menghan Song, Jiarui Zhao, Meng Cheng +4
Over the past two decades, the enigma of the deconfined quantum critical point (DQCP) has attracted broad attention across the condensed matter, quantum field theory, and high-ener…
Quantum criticality and entanglement for two dimensional long-range Heisenberg bilayer
Menghan Song, Jiarui Zhao, Yang Qi +2
The study of quantum criticality and entanglement in systems with long-range (LR) interactions is still in its early stages, with many open questions remaining. In this work, we in…
Finite-temperature critical behaviors in 2D long-range quantum Heisenberg model
Jiarui Zhao, Menghan Song, Yang Qi +2
The Mermin-Wagner theorem states that spontaneous continuous symmetry breaking is prohibited in systems with short-range interactions at spatial dimension . For long-range…
Emus live on the Gross-Neveu-Yukawa archipelago
Ting-Tung Wang, Zi Yang Meng
It is expected that the Gross-Neveu-Yukawa (GNY) chiral Ising transition of Majorana (or four-component Dirac) fermions coupled with scalar field in (2+1)D will be th…
The "Sign problem" of the 3rd order anomalous Hall effect in topological magnetic materials
Xu Zhang, Kai Sun, Zi Yang Meng
The anomalous Hall effect (AHE), which provides a bridgeway between the geometry of quantum wavefunctions and transport measurements, has been a key focus of intensive studies. In…
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{…
Experimental evidence for Berry curvature multipoles in antiferromagnets
Soumya Sankar, Ruizi Liu, Xue-Jian Gao +12
Berry curvature multipoles appearing in topological quantum materials have recently attracted much attention. Their presence can manifest in novel phenomena, such as nonlinear anom…
Dynamical properties of quantum many-body systems with long range interactions
Menghan Song, Jiarui Zhao, Chengkang Zhou +1
Employing large-scale quantum Monte Carlo simulations, we systematically compute the energy spectra of the 2D spin-1/2 Heisenberg model with long-range interactions. With the $1/r^…