90 citations · 813 across the 42 of their papers we have counts for
36 papers · 1 filter
Unraveling the Kagome Antiferromagnetic Model and Its Materials: An Integrated Approach
Xin Lu, Andreas Raikos, Menghan Song +6
We investigate the ground-state and finite-temperature properties of the kagome antiferromagnetic Heisenberg model with three inequivalent couplings, dubbed the model, which i…
Unconventional Quantum Criticality in Long-Range Spin-1 Chains: Insights from Entanglement Entropy and Bipartite Fluctuations
Justin Tim-Lok Chau, Jiarui Zhao, Nicolas Laflorencie +1
We study the ground-state phase diagram of a spin-1 Heisenberg chain with staggered long-range (LR) interactions decaying as using a quantum Monte Carlo approach b…
Quantum Fisher Information as a Probe of Critical Scaling in Frustrated Magnets: Signatures from Kagome Quantum Spin Liquid
Zhengbang Zhou, Chengkang Zhou, Menghan Song +2
Quantum Fisher information (QFI) is a measure of multipartite quantum entanglement that can be obtained from inelastic neutron scattering data on quantum magnets. In this work, we…
Thermodynamics of Shastry-Sutherland Model under Magnetic Field
Menghan Song, Chengkang Zhou, Cheng Huang +1
Motivated by the recent experimental discovery of the -linear specific heat in pressurized and magnetized Shastry-Sutherland Mott insulator SrCu(BO), we perform the…
Quantum Fisher Information as a Thermal Probe in Frustrated Magnets through Insights from Quantum Spin Ice
Chengkang Zhou, Zhengbang Zhou, Félix Desrochers +2
Quantum Fisher information (QFI) is a measure of multipartite entanglement accessible via inelastic neutron scattering. Here we demonstrate that QFI reveals thermal and dynamical p…
Entanglement architecture of beyond-Landau quantum criticality
Menghan Song, Ting-Tung Wang, Liuke Lyu +2
Quantum critical points beyond the Landau paradigm exhibit fractionalized excitations and emergent gauge fields. Here, we use entanglement microscopy--full tomography of the reduce…
Multiparty Entanglement Microscopy of Quantum Ising models in 1d, 2d and 3d
Liuke Lyu, Menghan Song, Ting-Tung Wang +2
Entanglement microscopy reveals the true quantum correlations among the microscopic building blocks of many-body systems [Nat. Commun. 16, 96 (2025)]. Using this approach, we study…
Angle-Tuned Gross-Neveu Quantum Criticality in Twisted Bilayer Graphene: A Quantum Monte Carlo Study
Cheng Huang, Nikolaos Parthenios, Maksim Ulybyshev +4
The fascinating quantum many-body states in twisted bilayber graphene (TBG) at magic angle, due to the interplay of Coulomb interactions and the quantum metrics of flat bands, have…
Unconventional Scalings of Quantum Entropies in Long-Range Heisenberg Chains
Jiarui Zhao, Nicolas Laflorencie, Zi Yang Meng
In this work, building on state-of-the-art quantum Monte Carlo simulations, we perform systematic finite-size scaling of both entanglement and participation entropies for long-rang…
Scaling of Disorder Operator and Entanglement Entropy at Easy-Plane Deconfined Quantum Criticalities
Jiarui Zhao, Zi Yang Meng, Yan-Cheng Wang +1
We systematically investigate the scaling behaviors of the disorder operator and the entanglement entropy (EE) of the easy-plane JQ (EPJQ) model at its transitions between the anti…
Extracting Universal Corner Entanglement Entropy during the Quantum Monte Carlo Simulation
Yuan Da Liao, Menghan Song, Jiarui Zhao +1
The subleading corner logarithmic corrections in entanglement entropy (EE) are crucial for revealing universal characteristics of the quantum critical points (QCPs), but they are c…
Entanglement Microscopy: Tomography and Entanglement Measures via Quantum Monte Carlo
Ting-Tung Wang, Menghan Song, Liuke Lyu +2
We employ a protocol, dubbed entanglement microscopy, to reveal the multipartite entanglement encoded in the full reduced density matrix of microscopic subregion both in spin and f…
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…
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…
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{…
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^…