66 citations · 477 across the 21 of their papers we have counts for
12 papers · 1 filter
Correlations and dynamical quantum phase transitions in an interacting topological insulator
Wing Chi Yu, P. D. Sacramento, Yan Chao Li +1
Dynamical quantum phase transitions (DQPTs), which refer to the criticality in time of a quantum many-body system, have attracted much theoretical and experimental research interes…
Order parameter conditions from mutual information and symmetry conditions
Ivan Arraut, Wing Chi Yu
The mutual information method has demonstrated to be very useful for deriving the potential order parameter of a system. Although the method suggests some constraints which help to…
Quantum phase transitions in the spin-1 Kitaev-Heisenberg chain
Wen-Long You, Gaoyong Sun, Jie Ren +2
Recently, it has been proposed that higher-spin analogues of the Kitaev interactions may also occur in a number of materials with strong Hund's and spin-orbit coupling. In th…
Stabilization of antiferromagnetism in 1T-FeTaS
Q. Niu, W. Zhang, Y. T. Chan +9
1T-TaS is a prototypical charge-density-wave (CDW) system with a Mott insulating ground state. Usually, a Mott insulator is accompanied by an antiferromagnetic state. However,…
Nonsaturating large magnetoresistance in the high carrier density nonsymmorphic metal CrP
Q. Niu, W. C. Yu, E. I. Paredes Aulestia +10
The band structure of high carrier density metal CrP features an interesting crossing at the Y point of the Brillouin zone. The crossing, which is protected by the nonsymmorphic sy…
Detection of topological phases by quasi-local operators
Wing Chi Yu, P. D. Sacramento, Yan Chao Li +2
It has been proposed recently by some of the authors that the quantum phase transition of a topological insulator like the SSH model may be detected by the eigenvalues and eigenvec…
Reduced density matrix and order parameters of a topological insulator
Wing Chi Yu, Yan Chao Li, P. D. Sacramento +1
It has been recently proposed that the reduced density matrix may be used to derive the order parameter of a condensed matter system. Here we propose order parameters for the phase…
Density Matrix Spectra and Order Parameters in the 1D Extended Hubbard Model
Wing Chi Yu, Shi-Jian Gu, Hai-Qing Lin
Without any knowledge of the symmetry existing in the system, we derive the exact forms of the order parameters which show long-range correlation in the ground state of the one-dim…
Fidelity susceptibilities in the one-dimensional extended Hubbard model
Wing Chi Yu, Shi-Jian Gu, Hai-Qing Lin
We investigated the fidelity susceptibility in the one-dimension (1D) Hubbard model and the extended Hubbard model at half-filling via the density matrix renormalization group. Fro…
Spectral function and fidelity susceptibility in quantum critical phenomena
Shi-Jian Gu, Wing Chi Yu
In this paper, we derive a simple equality that relates the spectral function and the fidelity susceptibility , i.e. wit…
A spin chain with spiral orders: perspectives of quantum information and mechanical response
Shi-Jian Gu, Wing-Chi Yu, Hai-Qing Lin
In this paper, we study the ground state of a one-dimensional exactly solvable model with a spiral order. While the model's energy spectra is the same as the one-dimensional transv…
Scaling of quantum Zeno dynamics in thermodynamic systems
Wing Chi Yu, Li-Gang Wang, Shi-Jian Gu +1
We study the quantum Zeno effect (QZE) in two many-body systems, namely the one-dimensional transverse-field Ising model and the Lipkin-Meshkov-Glick (LMG) model, coupled to a cent…