194 citations · 2.2k across the 59 of their papers we have counts for
59 papers
Complexity transition in the Dicke model of light-matter interaction
Yicheng Zhang, Erhai Zhao
Tuning the coupling strength of an interacting quantum system may drive a sudden change in its ground-state or thermal properties. To identify and grasp non-analytical, or even…
Double-exchange ferromagnetism of fermionic atoms in a -orbital hexagonal lattice
Haoran Sun, Erhai Zhao, Youjin Deng +1
A large class of correlated quantum materials feature strong Hund's coupling. Yet cold-atom quantum simulators have so far focused primarily on single-orbital Fermi-Hubbard systems…
Pairing from repulsion in a two-dimensional Fermi gas with soft-core interactions
Ahmet Keles, Xiaopeng Li, Erhai Zhao
We investigate a model many-body system of spinless Fermi gas in two dimensions, where the bare two-body interaction is repulsive and takes the form of a soft-core disk potential.…
Unravelling the edge spectra of non-Hermitian Chern insulators
James Bartlett, Erhai Zhao
Non-Hermitian Chern insulators differ from their Hermitian cousins in one key aspect: their edge spectra are incredibly rich and confounding. For example, even in the simple case w…
Learning a compass spin model with neural network quantum states
Eric Zou, Erik Long, Erhai Zhao
Neural network quantum states provide a novel representation of the many-body states of interacting quantum systems and open up a promising route to solve frustrated quantum spin m…
Rise and fall of plaquette order in Shastry-Sutherland magnet revealed by pseudo-fermion functional renormalization group
Ahmet Keles, Erhai Zhao
The Shastry-Sutherland model as a canonical example of frustrated magnetism has been extensively studied. The conventional wisdom has been that the transition from the plaquette va…