159 citations · 721 across the 22 of their papers we have counts for
22 papers
Parity-protected superconducting qubit based on topological insulators
Guo-Liang Guo, Han-Bing Leng, Xin Liu
We propose a novel architecture that utilizes two 0- qubits based on topological Josephson junctions to implement a parity-protected superconducting qubit. The topological Josep…
Deterministic topological quantum gates for Majorana qubits without ancillary modes
Su-Qi Zhang, Jian-Song Hong, Yuan Xue +4
The realization of quantum gates in topological quantum computation still confronts significant challenges in both fundamental and practical aspects. Here, we propose a determinist…
Electrostatic effects of the MnBi2Te4-superconductor hetero-structures in chiral Majorana search
Li Chen, Zhan Cao, Ke He +2
The realization of chiral Majorana modes is a challenging task. We aim to comprehend the phase diagrams and parameter control capabilities of the actual devices used in the chiral…
Higher-order topological phases emerging from the Su-Schrieffer-Heeger stacking
Xun-Jiang Luo, Xiao-Hong Pan, Chao-Xing Liu +1
In this work, we develop a systematical approach of constructing and classifying the model Hamiltonians for two-dimensional (2D) higher-order topological phase with corner zero ene…
Braiding higher-order Majorana corner states through their spin degree of freedom
Xiao-Hong Pan, Xun-Jiang Luo, Jin-Hua Gao +1
In this work, we study the spin texture of a class of higher-order topological superconductors (HOTSC) and show how it can be used to detect and braid Majorana corner modes (MCMs).…
0- qubit in one Josephson junction
Guo-Liang Guo, Han-Bing Leng, Yong Hu +1
Quantum states are usually fragile which makes quantum computation being not as stable as classical computation. Quantum correction codes can protect quantum states but need a larg…
Controllable Majorana vortex states in iron-based superconducting nanowires
Chuang Li, Xun-Jiang Luo, Li Chen +3
There has been experimental evidence for the Majorana zero modes (MZMs) in solid state systems, which are building blocks for potential topological quantum computing. It is importa…
Higher-order topological superconductors based on weak topological insulators
Xun-Jiang Luo, Xiao-Hong Pan, Xin Liu
High-order topological phases host robust boundary states at the boundary of the boundary, which can be interpreted from their boundary topology. In this work, considering the inte…
Intrinsic Andreev -reflection and Josephson -junction for centrosymmetric spin-triplet superconductors
Han-Bing Leng, Chuang Li, Xin Liu
In this work, we systematically study two phases, called Andreev -phase and orbital-phase, and their influence on the Josephson effect. When the system is time-reversal invarian…
Superconducting proximity effect in a transparent van der Waals superconductor-metal junction
Jing Li, Han-Bing Leng, Hailong Fu +5
We report on Andreev reflections at clean NbSe2-bilayer graphene junctions. The high transparency of the junction, which manifests as a large conductance enhancement of up to 1.8,…
Lattice distortion induced first and second order topological phase transition in rectangular high-T superconducting monolayer
Li Chen, Bin Liu, Gang Xu +1
We theoretically study the lattice distortion induced first and second order topological phase transition in rectangular FeSeTe monolayer. When compressing the lattic…
High- Superconductor Fe(Se,Te) Monolayer: an Intrinsic, Scalable and Electrically-tunable Majorana Platform
Xianxin Wu, Xin Liu, Ronny Thomale +1
A monolayer of the high- superconductor FeTeSe has been predicted to realize a topologically non-trivial state with helical edge modes at its boundary, providing a…
Lattice symmetry assisted second order topological superconductors and Majorana patterns
Xiao-Hong Pan, Kai-Jie Yang, Li Chen +3
We propose a realization of the lattice symmetry assisted second order topological superconductors with corner Majorana zero modes (MZM) based on two-dimensional topological insula…
Superconducting spin properties of Majorana nanowires and the associated superconducting anomalous Hall effect
Li Chen, Ying-Hai Wu, Xin Liu
It is difficult to unambiguously confirm the existence of Majorana zero modes (MZMs) due to the absence of smoking-gun signatures in charge transport measurements. Recent studies s…
Inter-Landau-level Andreev Reflection at the Dirac Point in a Graphene Quantum Hall State Coupled to a NbSe2 Superconductor
Manas Ranjan Sahu, Xin Liu, Arup Kumar Paul +4
Superconductivity and quantum Hall effect are distinct states of matter occurring in apparently incompatible physical conditions. Recent theoretical developments suggest that the c…
Majorana bound states and subgap states in three-terminal topological superconducting nanowire-quantum dot hybrid devices
Guang-Yao Huang, Xin Liu, H. Q. Xu
Three-terminal topological superconducting nanowire (TSNW)-quantum dot (QD) hybrid junction devices are studied. The energy spectra and the wave functions of the subgap states are…
Proximity-effect-induced Superconducting Gap in Topological Surface States - A Point Contact Spectroscopy Study of NbSe2/Bi2Se3 Superconductor-Topological Insulator Heterostructures
Wenqing Dai, Anthony Richardella, Renzhong Du +8
Proximity-effect-induced superconductivity was studied in epitaxial topological insulator Bi2Se3 thin films grown on superconducting NbSe2 single crystals. A point contact spectros…
Universal spin-triplet superconducting correlations of Majorana fermions
Xin Liu, Jay D. Sau, S. Das Sarma
We establish that Majorana fermions on the boundary of topological superconductors have only spin-triplet superconducting correlations independent of whether the bulk superconducti…
Long-Range Spin-Triplet Helix in Proximity Induced Superconductivity in Spin-Orbit-Coupled Systems
Xin Liu, J. K. Jain, Chao-Xing Liu
We study proximity induced triplet superconductivity in a spin-orbit-coupled system, and show that the \textbf{d} vector of the induced triplet superconductivity undergoes precessi…
Quantum Anomalous Hall Effect in Magnetically Doped InAs/GaSb Quantum Wells
Qingze Wang, Xin Liu, Hai-Jun Zhang +3
The quantum anomalous Hall effect has recently been observed experimentally in thin films of Cr doped (Bi,Sb)Te at a low temperature ( 30mK). In this work, we propose…
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…