33 citations · 72 across the 13 of their papers we have counts for
13 papers
Approaching the Inverse Neutron Scattering Problem with Neural Networks
Jingyi Luo, Fletcher Williams, Ang-Kun Wu +3
Determining the microscopic Hamiltonian of a quantum magnet from inelastic neutron scattering measurements remains a central challenge in condensed matter physics. While the dynami…
Geometric Mean Pooling for Equal-Weight Multiplicative Coarse-Graining
Ang-Kun Wu, Fangdi Wen, Jingtao Zhang
As an alternative to the additive and extremal biases of average and max pooling, we introduce Geometric Mean Pooling (GMP), a signed pooling operator that combines the product of…
Compact Spin-Charge Separated Neural Quantum States for Valence-Bond States
Ang-Kun Wu, Louis Primeau, Yixin Zhang +3
Neural-network quantum states (NQS) provide a flexible nonlinear representation of quantum many-body wavefunctions, but their efficiency depends sensitively on whether the architec…
Separate surface and bulk topological Anderson localization transitions in disordered axion insulators
Cormac Grindall, Alexander C. Tyner, Ang-Kun Wu +2
In topological phases of matter for which the bulk and boundary support distinct electronic gaps, there exists the possibility of decoupled mobility gaps in the presence of disorde…
Electronic anisotropy and rotational symmetry breaking at a Weyl semimetal/spin ice interface
Tsung-Chi Wu, Yueqing Chang, Ang-Kun Wu +10
In magnetic pyrochlore materials, the interplay of spin-orbit coupling, electronic correlations, and geometrical frustration gives rise to exotic quantum phases, including topologi…
Absence of quantization in the circular photogalvanic effect in disordered chiral Weyl semimetals
Ang-Kun Wu, Daniele Guerci, Yixing Fu +2
The circularly polarized photogalvanic effect (CPGE) is studied in chiral Weyl semimetals with short-ranged quenched disorder. Without disorder, the topological properties of chira…
Vacancy-induced tunable Kondo effect in twisted bilayer graphene
Yueqing Chang, Jinjing Yi, Ang-Kun Wu +5
In single sheets of graphene, vacancy-induced states have been shown to host an effective spin-1/2 hole that can be Kondo-screened at low temperatures. Here, we show how these vaca…
Disentangling Interacting Systems with Fermionic Gaussian Circuits: Application to Quantum Impurity Models
Ang-Kun Wu, Benedikt Kloss, Wladislaw Krinitsin +3
Tensor network quantum states are powerful tools for strongly correlated systems, tailored to capture local correlations such as in ground states with entanglement area laws. When…
Nonlocality as the source of purely quantum dynamics of BCS superconductors
Aidan Zabalo, Ang-Kun Wu, J. H. Pixley +1
We show that the classical (mean-field) description of far from equilibrium superconductivity is exact in the thermodynamic limit for local observables but breaks down for global q…
The Aubry-Andre Anderson model: Magnetic impurities coupled to a fractal spectrum
Ang-Kun Wu, Daniel Bauernfeind, Xiaodong Cao +3
The Anderson model for a magnetic impurity in a one-dimensional quasicrystal is studied using the numerical renormalization group (NRG). The main focus is elucidating the physics a…
Fractal Spectrum of the Aubry-Andre Model
Ang-Kun Wu
The Aubry-Andre model is a one-dimensional lattice model for quasicrystals with localized and delocalized phases. At the localization transition point, the system displays fractal…
Fractal x-ray edge problem at the critical point of the Aubry-André model
Angkun Wu, Sarang Gopalakrishnan, J. H. Pixley
We study the Anderson orthogonality catastrophe, and the corresponding x-ray edge problem, in systems that are at a localization transition driven by a deterministic quasiperiodic…
Bridges in Complex Networks
Ang-Kun Wu, Liang Tian, Yang-Yu Liu
A bridge in a graph is an edge whose removal disconnects the graph and increases the number of connected components. We calculate the fraction of bridges in a wide range of real-wo…