15 citations · 80 across the 17 of their papers we have counts for
17 papers
Renormalization group analysis for bosonization coefficients in half-odd-integer Kitaev spin chains
Jianxun Li, Chao Xu, Wang Yang
Based on a renormalization-group (RG) analysis, we study the bosonization formulas for spin- Kitaev-Gamma and Kitaev-Heisenberg-Gamma chains in the parameter regime , …
Many-body wave function and edge magnetization of an open superconducting chain
Jiarui Jiao, Chao Xu, Congjun Wu +1
Although BCS wave functions for superconductors under periodic boundary conditions are well established, obtaining an explicit form of the many-body BCS wave function under open bo…
Left-left-right-right magnetic order in spin-1/2 Kitaev-Heisenberg chain
Wang Yang, Chao Xu, Shicheng Ma +2
In this work, we perform a combination of analytical and numerical studies on the phase diagram of the spin-1/2 Kitaev-Heisenberg chain in the region of negative Kitaev and positiv…
Unveiling Correlated Two-dimensional Topological Insulators through Fermionic Tensor Network States -- Classification, Edge Theories and Variational Wavefunctions
Chao Xu, Yixin Ma, Shenghan Jiang
The study of topological band insulators has revealed fascinating phases characterized by band topology indices and anomalous boundary modes protected by global symmetries. In stro…
Variational Tensor Wavefunctions for the Interacting Quantum Spin Hall Phase
Yixin Ma, Shenghan Jiang, Chao Xu
The quantum spin hall (QSH) phase, also known as the 2D topological insulator, is characterized by protected helical edge modes arising from time reversal symmetry. While initially…
Nonsymmorphic spin-space cubic groups and SU(2) conformal invariance in one-dimensional spin-1/2 models
Wang Yang, Alberto Nocera, Chao Xu +1
Recently, extended gapless phases with emergent SU(2) conformal invariance occupying finite regions in the phase diagrams have been found in one-dimensional spin-1/2 models wit…
Counter-rotating spiral, zigzag, and 120 orders from coupled-chain analysis of Kitaev-Gamma-Heisenberg model, and relations to honeycomb iridates
Wang Yang, Alberto Nocera, Chao Xu +2
We study the nearest neighboring spin-1/2 Kitaev-Heisenberg-Gamma () model on the honeycomb lattice in the parameter region of ferromagnetic (FM) Kitaev and antiferromagnetic…
Emergent SU(2) conformal symmetry in the spin-1/2 Kitaev-Gamma chain with a Dzyaloshinskii-Moriya interaction
Wang Yang, Alberto Nocera, Chao Xu +3
We study the one-dimensional spin-1/2 Kitaev-Gamma model with a bond-dependent Dzyaloshinskii-Moriya (DM) interaction, which can be induced by an electric field applied in the thir…
Origin of nonsymmorphic bosonization formulas in generalized antiferromagnetic Kitaev spin- chains from a renormalization-group perspective
Wang Yang, Chao Xu, Alberto Nocera +1
Recently, in the Luttinger liquid phase of the one-dimensional generalized antiferromagnetic Kitaev spin-1/2 model, it has been found that the abelian bosonization formulas of the…
Ground and excited states of coupled exciton liquids in electron-hole quadrilayers
Chao Xu, Michael Fogler
Interlayer excitons are bound states of electrons and holes confined in separate two-dimensional layers. Due to their repulsive dipolar interaction, interlayer excitons can form a…
Nonsymmorphic bosonization in one-dimensional generalized Kitaev spin-1/2 models
Wang Yang, Chao Xu, Shenglong Xu +2
In this work, we perform a detailed study on the consequences of nonsymmorphic symmetries in the Luttinger phase of the one-dimensional spin-1/2 Kitaev-Heisenberg-Gamma model with…
Attractive and repulsive dipolar interaction in bilayers of indirect excitons
Darius Choksy, Chao Xu, Michael Fogler +3
We explore attractive dipolar interaction in indirect excitons (IXs). For one layer of IXs in a single pair of coupled quantum wells (CQW), the out-of-plane IX electric dipoles lea…
Superconducting junction with tri-component pairing gap functions
Chao Xu, Wang Yang, Congjun Wu
We study a superconducting hetro-junction with one side characterized by the unconventional chiral -wave gap function and the other side the conventional -wave…
Nonrelativistic axion electrodynamics in superconductors
Chao Xu, Wang Yang
In previous works, axion electrodynamics in three dimensional superconductors is discussed by borrowing the results from superconducting Dirac systems. However, in this work…
Exciton gas transport through nano-constrictions
Chao Xu, J. R. Leonard, C. J. Dorow +4
An indirect exciton is a bound state of an electron and a hole in spatially separated layers. Two-dimensional indirect excitons can be created optically in heterostructures contain…
A Quantized Inter-level Character in Quantum Systems
Chao Xu, Jianda Wu, Congjun Wu
For a quantum system subject to external parameters, the Berry phase is an intra-level property, which is gauge invariant module for a closed loop in the parameter space and g…
Single branch of chiral Majorana modes from doubly degenerate Fermi surfaces
Wang Yang, Chao Xu, Congjun Wu
Majorana fermions are often proposed to be realized by first singling out one Fermi surface without spin degeneracy via spin-orbit coupling, and then imposing boundaries or defects…