90 citations · 272 across the 15 of their papers we have counts for
15 papers
Crossover and Changeover in Spin-1 Kitaev- Chain with Uniaxial Single-ion Anisotropy
Qiang Luo, Shijie Hu, Wang Yang +4
Recent advances in bond-directional spin chains have revealed extensive emergent phenomena and unconventional criticality. Here we investigate the spin-1 Kitaev- chain with unia…
Probing the Critical Behavior of a Sign-Problematic Model with Monte Carlo Simulations
Ye Ling, Yuting Wang, Wenan Guo +1
The sign-problematic generalized Baxter-Wu (GBW) model with asymmetric complex couplings is mapped onto a one-dimensional quantum model. Utilizing the model's exactly known critica…
Edge modes of topological Mott insulators and deconfined quantum critical points
Yuhai Liu, Toshihiro Sato, Disha Hou +3
Topology and anomalies lead to edge modes that can interact with critical bulk fluctuations. To study this setup, pertaining to boundary criticality, we consider a model exhibiting…
Effective model for superconductivity in magic-angle graphene
Disha Hou, Yuhai Liu, Toshihiro Sato +3
We carry out large-scale quantum Monte Carlo simulations of a candidate field theory for the onset of superconductivity in magic-angle twisted bilayer graphene. The correlated insu…
Simulation of Fermionic and Bosonic Critical Points with Emergent SO(5) Symmetry
Toshihiro Sato, Zhenjiu Wang, Yuhai Liu +4
We introduce a model of Dirac fermions in 2+1 dimensions with a semimetallic, a quantum spin-Hall insulating (QSHI), and an s-wave superconducting (SSC) phase. The phase diagram fe…
Charge excitations across a superconductor-insulator transition
Xiaodong Jin, Yuhai Liu, Rubem Mondaini +1
We study the superconductor-insulator transition (SIT) in the ground state of the attractive honeycomb Hubbard model in the presence of a staggered potential (a mass term), using a…
Bandwidth controlled quantum phase transition between an easy-plane quantum spin Hall state and an s-wave superconductor
Disha Hou, Yuhai Liu, Toshihiro Sato +3
The quantum spin Hall state can be understood in terms of spontaneous O(3) symmetry breaking. Topological skyrmion configurations of the O(3) order parameter vector carry a charge…
Single-photon scattering in a giant-molecule waveguide-QED system
Xian-Li Yin, Yu-Hong Liu, Jin-Feng Huang +1
We study the coherent single-photon scattering in a one-dimensional waveguide coupled to a giant artificial molecule consisting of two coupled giant atoms. Since each giant atom co…
Thermodynamic and Dynamical Signatures of a Quantum Spin-Hall Insulator to Superconductor Transition
Martin Hohenadler, Yuhai Liu, Toshihiro Sato +3
Thermodynamic and dynamical properties of a model of Dirac fermions with a deconfined quantum critical point (DQCP) separating an interaction-generated quantum spin-Hall insulator…
Accelerated ground-state cooling of an optomechanical resonator via shortcuts to adiabaticity
Yu-Hong Liu, Xian-Li Yin, Jin-Feng Huang +1
Ground-state cooling of mechanical resonators is an important task in quantum optomechanics, because it is a necessary prerequisite for creation, manipulation, and application of m…
Gross-Neveu Heisenberg criticality: dynamical generation of quantum spin Hall masses
Yuhai Liu, Zhenjiu Wang, Toshihiro Sato +2
We consider fermions on a honeycomb lattice supplemented by a spin invariant interaction that dynamically generates a quantum spin Hall insulator. This lattice model provides an in…
Doping-induced quantum spin Hall insulator to superconductor transition
Zhenjiu Wang, Yuhai Liu, Toshihiro Sato +4
A unique property of a dynamically generated quantum spin Hall state are Goldstone modes that correspond to the long-wavelength fluctuations of the spin-orbit coupling order parame…
Generation of macroscopic entangled cat states in a molecular cavity-QED system
Jian Huang, Yu-Hong Liu, Jin-Feng Huang +1
Macroscopic entangled cat states not only are significant in the demonstration of the fundamentals of quantum physics, but also have wide applications in modern quantum technologie…
Superconductivity from the Condensation of Topological Defects in a Quantum Spin-Hall Insulator
Yuhai Liu, Zhenjiu Wang, Toshihiro Sato +4
The discovery that spin-orbit coupling can generate a new state of matter in the form of quantum spin-Hall (QSH) insulators has brought topology to the forefront of condensed matte…
Equivalent-neighbor Potts models in two dimensions
Xiaofeng Qian, Youjin Deng, Yuhai Liu +2
We investigate the two-dimensional and 4 Potts models with a variable interaction range by means of Monte Carlo simulations. We locate the phase transitions for several inter…