159 citations · 270 across the 16 of their papers we have counts for
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Even-harmonic generation from topological edge states in generalized Su-Schrieffer-Heeger models
Chi-Ting Liu, J-S You, Hsiu-Chuan Hsu
High-order harmonic generation (HHG) in solids has emerged as a powerful probe of symmetry and topological properties in quantum materials. In this work, we investigate the HHG res…
Shift spin photocurrents in two-dimensional systems
Hsiu-Chuan Hsu, Tsung-Wei Chen
The generation of nonlinear spin photocurrents by circularly polarized light in two-dimensional systems is theoretically investigated by calculating the shift spin conductivities.…
Nonlinear photoconductivities and quantum geometry of chiral multifold fermions
Hsiu-Chuan Hsu, Jhih-Shih You, Junyeong Ahn +1
Chiral multifold fermions are quasi-particles that appear only in chiral crystals such as transition metal silicides in the cubic B20 structure (i.e., the CoSi family), and they ma…
Disorder effects on triple-point fermions
Hsiu-Chuan Hsu, Ion Cosma Fulga, Jhih-Shih You
The stability of three-dimensional relativistic semimetals to disorder has recently attracted great attention, but the effect of disorder remains elusive for multifold fermions, th…
Digital quantum simulation of dynamical topological invariants on near-term quantum computers
Huai-Chun Chang, Hsiu-Chuan Hsu
Programmable quantum processors are suitable platforms for simulating quantum systems, of which topological phases are of particular interest. We simulate the quench dynamics of a…
The semiclassical theory for spin dynamics in a disordered system
Tsung-Wei Chen, Hsiu-Chuan Hsu
We investigate the Drude model of spin dynamics in two-dimensional spin-orbit coupled systems. In the absence of an applied electric field, the spin aligns with the k-dependent eff…
Topological phase transitions in an inverted InAs/GaSb quantum well driven by tilted magnetic fields
Hsiu-Chuan Hsu, Min-Jyun Jhang, Tsung-Wei Chen +1
The helical edge states in a quantum spin Hall insulator are presumably protected by time- reversal symmetry. However, even in the presence of magnetic field which breaks time-reve…
Conductance fluctuations in disordered 2D topological insulator wires: From quantum spin-Hall to ordinary quantum phases
Hsiu-Chuan Hsu, Ioannis Kleftogiannis, Guang-Yu Guo +1
Impurities and defects are ubiquitous in topological insulators (TIs) and thus understanding the effects of disorder on electronic transport is important. We calculate the distribu…
Electrically tunable spin polarization of chiral edge modes in a quantum anomalous Hall insulator
Rui-Xing Zhang, Hsiu-Chuan Hsu, Chao-Xing Liu
In the quantum anomalous Hall effect, chiral edge modes are expected to conduct spin polarized current without dissipation and thus hold great promise for future electronics and sp…
Reentrant quantum anomalous Hall effect with in-plane magnetic fields in HgMnTe quantum wells
Hsiu-Chuan Hsu, Xin Liu, Chao-Xing Liu
Quantum anomalous Hall effect has been predicted in HgMnTe quantum wells with an out-of-plane magnetization of Mn atoms. However, since HgMnTe quantum wells are paramagnetic, an ou…
In-plane Magnetization Induced Quantum Anomalous Hall Effect
Xin Liu, Hsiu-Chuan Hsu, Chao-Xing Liu
In a two-dimensional electron gas, the quantized Hall conductance can be induced by a strong magnetic field, known as the quantum Hall effect, and it can also result from the stron…
Transverse force generated by an electric field and transverse charge imbalance in spin-orbit coupled systems
Tsung-Wei Chen, Hsiu-Chuan Hsu, Guang-Yu Guo
We use linear response theory to study the transverse force generated by an external electric field and hence possible charge Hall effect in spin-orbit coupled systems. In addition…