213 citations · 429 across the 15 of their papers we have counts for
15 papers
Quasi-Hermitian extended SSH models
Iao-Fai Io, Cheng-Yuan Huang, Jhih-Shih You +2
We consider the quasi Hermitian limit of a non-Hermitian extended Su Schrieffer Heeger model, in which the hopping amplitudes obey a specific relation so that the system may be map…
Quantum walk in (1+1)-dimensional spacetime for Majorana dynamics with high order approximation in NISQ
Wei-Ting Wang, Xiao-Gang He, Hsien-Chung Kao +1
In this study, we show that quantum walk can describe a Majorana fermion when the coin operator constrained by Lorentz covariance and the initial state satisfies the Majorana condi…
Unified intermediate coupling description of the pseudogap and the strange metal phases of cuprates
Hsien-chung Kao, Dingping Li, Baruch Rosenstein
A one band Hubbard model with intermediate coupling is shown to describe the two most important unusual features of a normal state: linear resistivity strange metal and the pseudog…
Winding number and Zak phase in multi-band SSH models
Chen-Shen Lee, Iao-Fai Io, Hsien-chung Kao
We use multi-band SSH models to demonstrate a prescription for calculating the correct Zak phase and winding number of multi-band systems. We verify our prescription by comparing t…
Connection between the winding number and the Chern number
Han-Ting Chen, Chia-Hsun Chang, Hsien-chung Kao
Bulk-edge correspondence is one of the most distinct properties of topological insulators. In particular, the 1D winding number $\n$ has a one-to-one correspondence to the number o…
Refined Characterization of Lattice Chern Insulators by Bulk Entanglement Spectrum
Dah-Wei Chiou, Hsien-Chung Kao, Feng-Li Lin
We have studied extensively the band crossing patterns of the bulk entanglement spectrum (BES) for various lattice Chern insulators. We find that only partitions with dual symmetry…