Publications (50)
Triple-meron crystal in high-spin Kitaev magnets
Ken Chen, Qiang Luo, Zongsheng Zhou +5
Spin textures with nontrivial topology hold great promise in future spintronics applications since they are robust against local deformations. The meron, as one of such spin textur…
Spontaneous dimerization, spin-nematic order, and deconfined quantum critical point in a spin-1 Kitaev chain with tunable single-ion anisotropy
Qiang Luo, Shijie Hu, Jinbin Li +3
The Kitaev-type spin chains have been demonstrated to be fertile playgrounds in which exotic phases and unconventional phase transitions are ready to appear. In this work, we use t…
Strain-induced phase diagram of the Kitaev material
Zongsheng Zhou, Ken Chen, Qiang Luo +2
The interplay among anisotropic magnetic terms, such as the bond-dependent Kitaev interactions and single-ion anisotropy, plays a key role in stabilizing the finite-temperature fer…
Interplay of Kitaev Interaction and Off-diagonal Exchanges: Exotic Phases and Quantum Phase Diagrams
Qiang Luo, Jize Zhao, Xiaoqun Wang
Aligning with the everlasting search for quantum spin liquids (QSLs), identifying the QSL in Kitaev magnets has garnered great research interest during the past decade and remains…
Chiral spin state and nematic ferromagnet in the spin-1 Kitaev- model
Qiang Luo, Jize Zhao, Jinbin Li +1
The higher-spin Kitaev magnets, in which the Kitaev interaction and off-diagonal exchange couplings are overwhelmingly large, have emerged as a fertile avenue to explore exotic pha…
Interlayer magnetic interactions in -twisted bilayer CrI
Haodong Yu, Jize Zhao, Fawei Zheng
The interlayer magnetic interaction in bilayer CrI plays a crucial role for its device applications. In this work, we studied the interlayer magnetic interaction in -twis…
Time-dependent DMRG Study on Quantum Dot under a Finite Bias Voltage
Shunsuke Kirino, Tatsuya Fujii, Jize Zhao +1
Resonant tunneling through quantum dot under a finite bias voltage at zero temperature is investigated by using the adaptive time-dependent density matrix renormalization group(TdD…
Model of Nonadiabatic to Adiabatic Dynamical Quantum Phase Transition in Photoexcited Systems
Jun Chang, Ilya Eremin, Jize Zhao
We study the ultrafast dynamic process in photoexcited systems and find that the Franck-Condon or Landau-Zener tunneling between the photoexcited state and the ground state is abru…
Critical entanglement of XXZ Heisenberg chains with defects
Jize Zhao, Ingo Peschel, Xiaoqun Wang
We study the entanglement properties of anisotropic open spin one-half Heisenberg chains with a modified central bond. The entanglement entropy between the two half-chains is calcu…
Long-range spin-orbital order in the spin-orbital SU(2)SU(2)U(1) model
Yang Liu, Z. Y. Xie, Hong-Gang Luo +1
By using the tensor-network state algorithm, we study a spin-orbital model with SU(2)SU(2)U(1) symmetry on the triangular lattice. This model was proposed to descri…
Magnetization of the spin-1/2 Heisenberg antiferromagnet on the triangular lattice
Qian Li, Hong Li, Jize Zhao +2
After decades of debate, now there is a rough consensus that at zero temperature the spin- Heisenberg antiferromagnet on the triangular lattice is three-sublattice …
Insulator to superfluid transition in coupled photonic cavities in two dimensions
Jize Zhao, Anders W. Sandvik, Kazuo Ueda
A system of coupled photonic cavities on a two-dimensional square lattice is systematically investigated using the stochastic series expansion quantum Monte Carlo method. The groun…
Crossover and Changeover in Spin-1 Kitaev- Chain with Uniaxial Single-ion Anisotropy
Qiang Luo, Shijie Hu, Wang Yang +4
Recent advances in bond-directional spin chains have revealed extensive emergent phenomena and unconventional criticality. Here we investigate the spin-1 Kitaev- chain with uni…
Anharmonicity in one-dimensional electron-phonon system
Jize Zhao, Kazuo Ueda
We investigate the effect of anharmonicity on the one-dimensional half-filled Holstein model by using the determinant quantum Monte Carlo method. By calculating the order parameter…
Universal Anomaly of Dynamics at Phase Transition Points Induced by Pancharatnam-Berry Phase
Jia-Yuan Zhang, Xia Yin, Ming-Yu liu +3
Recently, dynamical anomalies more than critical slowing down are often observed near both the continuous and first-order phase transition points. We propose that the universal ano…
Ground-state phase diagram of an anisotropic spin- model on the triangular lattice
Qiang Luo, Shijie Hu, Bin Xi +2
Motivated by the recent experiment on a rare-earth material YbMgGaO [Y. Li \textit{et al.}, Phys. Rev. Lett. \textbf{115}, 167203 (2015)], which found that the ground state of…
Low-energy properties of anisotropic two-dimensional spin-1/2 Heisenberg models in staggered magnetic fields
Bin Xi, Shijie Hu, Jize Zhao +3
We present a systematic study of the anisotropic spin-1/2 Heisenberg model in staggered magnetic fields in two dimensions (2D). To mimic real materials, we consider a system of cou…
Ground-state phase diagram and route to supersolidity in a two-component extended Bose-Hubbard model
Xuexin Qiu, Ning Bian, Yang Liu +4
We investigate the ground-state phase diagram of a two-component extended Bose-Hubbard model recently realized with dipolar excitons, using the projected entangled-pair states. For…
Hund-Heisenberg model in superconducting infinite-layer nickelates
Jun Chang, Jize Zhao, Yang Ding
We theoretically investigate the unconventional superconductivity in the newly discovered infinite-layer nickelates NdSrNiO based on a two-band model. By analyz…
Spin Splitter without Spin-Split Bands: A Reconfigurable Altermagnetic Texture
Bin Xi, Jie Lu, Qiang Luo +4
The altermagnetic spin-splitter effect converts an electric field into a transverse pure spin current, with no net magnetization and no charge-Hall counterpart. In established mate…
Altermagnetism and beyond in the -- Fermi-Hubbard model
Saisai He, Jize Zhao, Hong-Gang Luo +1
In this work, we revisit the phase diagram of the -- Fermi-Hubbard model on the square lattice to gain a more comprehensive understanding of this correlated model…
Insulating charge density wave for a half-filled SU(N) Hubbard model with an attractive on-site interaction in one dimension
Jize Zhao, Kazuo Ueda, Xiaoqun Wang
We study a one-dimensional SU(N) Hubbard model with an attractive on-site interaction and at half-filling on the bipartite lattice using density-matrix renormalization-group…
The evolution of magnetic structure driven by a synthetic spin-orbit coupling in two-component Bose-Hubbard model
Jize Zhao, Shijie Hu, Jun Chang +3
We study the evolution of magnetic structure driven by a synthetic spin-orbit coupling in a one-dimensional two-component Bose-Hubbard model. In addition to the Mott insulator-supe…
Successive topological phase transitions in two distinct spin-flop phases on the honeycomb lattice
Xudong Li, Jize Zhao, Jinbin Li +1
The Kitaev magnets with bond-dependent interactions have garnered considerable attention in recent years for their ability to harbor exotic phases and nontrivial excitations. The t…
Energy Dispersion, Superconductivity and Magnetic Fluctuations in Stacked Altermagnetism Materials
Jun Chang, Hantao Lu, Jize Zhao +2
Recently, altermagnetism (AM) has emerged as a new category of magnetism, alongside conventional antiferromagnetism (AFM) and ferromagnetism (FM). In an AM, superconductivity (SC)…
Midgap States in Antiferromagnetic Heisenberg Chains with A Staggered Field
Jizhong Lou, Changfeng Chen, Jize Zhao +4
We study low-energy excitations in antiferromagnetic Heisenberg chains with a staggered field which splits the spectrum into a longitudinal and a transverse branch. Bound states ar…
Parity-dependent phase diagrams in spin-cluster two-leg ladders
Zongsheng Zhou, Fuzhou Chen, Yin Zhong +2
Motivated by the recent experiment on , an edge-shared tetrahedral spin-cluster compound [M. Fujihala \textit{et al.}, Phys. Rev. Lett. \textbf{12…
Gapless quantum spin liquid in a honeycomb magnet
Qiang Luo, Jize Zhao, Hae-Young Kee +1
A family of spin-orbit coupled honeycomb Mott insulators offers a playground to search for quantum spin liquids (QSLs) via bond-dependent interactions. In candidate materials, a sy…
Ferromagnetism in a two-component Bose-Hubbard model with a synthetic spin-orbit coupling
Jize Zhao, Shijie Hu, Jun Chang +2
We study the effect of the synthetic spin-orbit coupling in a two-component Bose-Hubbard model in one dimension by employing the density-matrix renormalization group method. A ferr…
Anisotropic superexchange through nonmagnetic anions with spin-orbit coupling
Jun Chang, Jize Zhao, Yang Ding
Anisotropic superexchange interaction is one of the most important interactions in realizing exotic quantum magnetism, which is traditionally regarded to originate from magnetic io…
Topological phase transitions and thermal Hall effect in a noncollinear spin texture
Ken Chen, Qiang Luo, Bin Xi +2
The noncollinear spin textures provide promising avenues to stabilize exotic magnetic phases and excitations. They have attracted vast attention owning to their nontrivial band top…
Theory of dual fermion superconductivity in hole-doped cuprates
Jun Chang, Jize Zhao
Since the discovery of the cuprate high-temperature superconductivity in 1986, a universal phase diagram has been constructed experimentally and numerous theoretical models have be…
Exactly Solvable Kondo Lattice Model in Anisotropic Limit
Wei-Wei Yang, Jize Zhao, Hong-Gang Luo +1
In this paper we introduce an exactly solvable Kondo lattice model without any fine-tuning local gauge symmetry. This model describes itinerant electrons interplaying with a locali…
Beyond-adiabatic flat Chern bands from a double-helix skyrmion crystal
Bin Xi, Ken Chen, Qiang Luo +4
A central challenge in flat-band engineering is suppressing kinetic energy without sacrificing Berry curvature. We show that a double-helix skyrmion crystal (DHSKX)--two sublattice…
Generalized Holstein-Primakoff transformation with optimizable bosonic truncation
Yang Liu, Jia-Wei Mei, Rong Yu +3
Spin-wave theory provides a quasiparticle description of excitation spectra in quantum spin systems. In this theory, the spin operators are usually bosonized by the Holstein-Primak…
Thermodynamics of a spin-1/2 XYZ Heisenberg chain with a Dzyaloshinskii-Moriya interaction
Bin Xi, Shijie Hu, Qiang Luo +2
We study the thermodynamics of an XYZ Heisenberg chain with Dzyaloshinskii-Moriya interaction, which describes the low-energy behaviors of a one-dimensional spin-orbit-coupled boso…
Quantum dynamics in a spin-1/2 square lattice -- altermagnet
Yang Liu, Shiqi Shao, Saisai He +4
A key feature of the newly discovered altermagnet is that its spin degeneracy is lifted, although it has an antiferromagnetic order and zero net magnetization. In this work, we inv…
Intrinsic Jump Character of the First-Order Quantum Phase Transitions
Qiang Luo, Jize Zhao, Xiaoqun Wang
We find that the first-order quantum phase transitions~(QPTs) are characterized by intrinsic jumps of relevant operators while the continuous ones are not. Based on such an observa…
On single-copy entanglement
Ingo Peschel, Jize Zhao
The largest eigenvalue of the reduced density matrix for quantum chains is shown to have a simple physical interpretation and power-law behaviour in critical systems. This is verif…
Fractional Quantum Hall States at 1/3 and 5/2 Filling: the Density-Matrix Renormalization Group Calculations
Jize Zhao, D. N. Sheng, F. D. M. Haldane
In this paper, the density-matrix renormalization group method is employed to investigate the fractional quantum Hall effect at filling fractions and 5/2. We first present…
Emergent supercounterfluid and quantum phase diagram of two-component interacting bosons in one-dimensional optical lattice
Saisai He, Yang Liu, Bin Xi +3
Motivated by a recent experiment that realizes nearest-neighbor dipolar couplings in an optical lattice [C. Lagoin, , Nature , 485 (2022)], we study…
Robust superconducting correlation against inter-site interactions in the extended two-leg Hubbard ladder
Zongsheng Zhou, Weinan Ye, Hong-Gang Luo +2
The Hubbard and related models serve as a fundamental starting point in understanding the novel experimental phenomena in correlated electron materials, such as superconductivity,…
Symmetry-protected topological phase in a one-dimensional correlated bosonic model with a synthetic spin-orbit coupling
Jize Zhao, Shijie Hu, Ping Zhang
By performing large-scale density-matrix renormalization group simulations, we investigate a one-dimensional correlated bosonic lattice model with a synthetic spin-orbit coupling r…
Strong enhancement of d-wave superconductivity in an extended checkerboard Hubbard ladder
Xichen Huang, Saisai He, Jize Zhao +1
By employing the density-matrix renormalization group method, we study an extended checkerboard Hubbard model on the two-leg ladder, which includes an intraplaquette nearest-neighb…
Antiferromagnetic Heisenberg ladders in a staggered magnetic field
Jize Zhao, Xiaoqun Wang, Tao Xiang +4
We study the low-energy excitations of the spin-1/2 antiferromagnetic Heisenberg chain and -leg (=2, 3, 4) ladders in a staggered magnetic field . We show that ind…
Tunable spin states in two-dimensional magnet CrI3
Fawei Zheng, Jize Zhao, Zheng Liu +4
The recent discovery of ferromagnetic single-layer CrI3 creates ample opportunities for studying fundamental properties of atomically-thin magnets. By using first-principles calcul…
Bose-Einstein condensation of a two-magnon bound state in a spin-one triangular lattice
Jieming Sheng, Jia-Wei Mei, Le Wang +31
In ordered magnets, the elementary excitations are spin waves (magnons), which obey Bose-Einstein statistics. Similarly to Cooper pairs in superconductors, magnons can be paired in…
Unveiling the phase diagram of a bond-alternating spin- - chain
Qiang Luo, Jize Zhao, Xiaoqun Wang +1
The key to unraveling intriguing phenomena observed in various Kitaev materials lies in understanding the interplay of Kitaev () interaction and a symmetric off-diagonal in…
Ground-state phase diagram of the frustrated spin-1/2 two-leg honeycomb ladder
Qiang Luo, Shijie Hu, Jize Zhao +3
We investigate a spin- two-leg honeycomb ladder with frustrating next-nearest-neighbor (NNN) coupling along the legs, which is equivalent to two - spin chains couple…
Low-energy excitations of the one-dimensional half-filled SU(4) Hubbard model with an attractive on-site interaction: Density-matrix renormalization-group calculations and perturbation theory
Jize Zhao, Kazuo Ueda, Xiaoqun Wang
We investigate low-energy excitations of the one-dimensional half-filled SU(4) Hubbard model with an attractive on-site interaction U < 0 using the density matrix renormalization g…