38 citations · 132 across the 23 of their papers we have counts for
25 papers
An elliptic generalization of the Spin chain
Yi Qiao, Pei Sun, Xiaotian Xu +5
An integrable elliptic generalization of the closed quantum spin chain is constructed. Taking the trigonometric limit, we have shown that the corresponding R-matrix red…
Tensor-Network Analysis of Root Patterns in the XXX Model with Open Boundaries
Zhouzheng Ji, Pei Sun, Xiaotian Xu +3
The string hypothesis of Bethe roots is a cornerstone in the thermodynamic analysis of quantum integrable systems, since it connects root configurations with physical quantities su…
Exact surface energy of the Hubbard model with nonparallel boundary magnetic fields
Pei Sun, Yi Qiao, Tao Yang +2
In this study, we explore the precise physical quantities in the thermodynamic limit of the one-dimensional Hubbard model with nonparallel boundary magnetic fields based on the off…
Off-diagonal approach to the exact solution of quantum integrable systems
Yi Qiao, Junpeng Cao, Wen-Li Yang +2
We investigate the - scheme for the anti-ferromagnetic XXX spin chain under both periodic and open boundary conditions. We propose a new parametrization of the eigenvalues of…
Exact solution of the Bose Hubbard model with unidirectional hopping
Mingchen Zheng, Yi Qiao, Yupeng Wang +2
A one-dimensional Bose Hubbard model with unidirectional hopping is shown to be exactly solvable. Applying the algebraic Bethe ansatz method, we prove the integrability of the mode…
Exact solution of the -deformed vertex model with open boundaries
Guang-Liang Li, Junpeng Cao, Yi Qiao +1
In this paper, we study the exact solution of the -deformed quantum lattice model with non-diagonal open boundary condition. We demonstrate the crossing symmetry of…
Elementary excitations in an integrable twisted J1-J2 spin chain in the thermodynamic limit
Wei Wang, Yi Qiao, Rong-Hua Liu +2
The exact elementary excitations in a typical U(1) symmetry broken quantum integrable system, that is the twisted J1-J2 spin chain with nearest-neighbor, next nearest neighbor and…
Exact physical quantities of a competing spin chain in the thermodynamic limit
Pengcheng Lu, Yi Qiao, Junpeng Cao +1
We study the exact physical quantities of a competing spin chain which contains many interesting and meaningful couplings including the nearest neighbor, next nearest neighbor, chi…
Exact surface energy of the spin chain with generic non-diagonal boundary reflections
Guang-Liang Li, Yi Qiao, Junpeng Cao +3
The exact solution of the quantum spin chain with generic non-diagonal boundary reflections is obtained. It is found that the generating functional of conserved quantit…
Scattering matrix of elementary excitations in the antiperiodic XXZ spin chain with η=iπ/3
Pei Sun, Jintao Yang, Yi Qiao +2
We study the thermodynamic limit of the antiperiodic XXZ spin chain with the anisotropic parameter . We parameterize eigenvalues of the transfer matrix by their zer…
Exact ground state and elementary excitations of a competing spin chain with twisted boundary condition
Wei Wang, Yi Qiao, Junpeng Cao +2
A novel Bethe ansatz scheme is proposed to investigate the exact physical properties of an integrable anisotropic quantum spin chain with competing interactions among the nearest,…
Root patterns and energy spectra of quantum integrable systems without symmetry: antiperiodic spin chain
Xiong Le, Yi Qiao, Junpeng Cao +3
Finding out root patterns of quantum integrable models is an important step to study their physical properties in the thermodynamic limit. Especially for models without symm…
T-W relation and free energy of the Heisenberg chain at a finite temperature
Pengcheng Lu, Yi Qiao, Junpeng Cao +3
A new nonlinear integral equation (NLIE) describing the thermodynamics of the Heisenberg spin chain is derived based on the t-W relation of the quantum transfer matrices. The free…
Exact surface energy and helical spinons in the XXZ spin chain with arbitrary non-diagonal boundary fields
Yi Qiao, Junpeng Cao, Wen-Li Yang +2
An analytic method is proposed to compute the surface energy and elementary excitations of the XXZ spin chain with generic non-diagonal boundary fields. For the gapped case, in som…
Graded Off-diagonal Bethe ansatz solution of the spin chain model with generic integrable boundaries
Xiaotian Xu, Junpeng Cao, Yi Qiao +3
The graded off-diagonal Bethe ansatz method is proposed to study supersymmetric quantum integrable models (i.e., quantum integrable models associated with superalgebras). As an exa…
Exact ground state and elementary excitations of a topological spin chain
Yi Qiao, Pei Sun, Junpeng Cao +3
A novel Bethe Ansatz scheme is proposed to calculate physical properties of quantum integrable systems without symmetry. As an example, the anti-periodic XXZ spin chain, a t…
Exact solution of a anisotropic spin chain with antiperiodic boundary condition
Yi Qiao, Jian Wang, Junpeng Cao +1
The exact solution of an integrable anisotropic Heisenberg spin chain with nearest-neighbour, next-nearest-neighbour and scalar chirality couplings is studied, where the boundary c…
Exact solution of an integrable anisotropic spin chain model
Yi Qiao, Pei Sun, Zhirong Xin +2
An integrable anisotropic Heisenberg spin chain with nearest-neighbour couplings, next-nearest-neighbour couplings and scalar chirality terms is constructed. After proving the inte…
Correlation functions of the XXZ spin chain with the twisted boundary condition
Yi Qiao, Zhirong Xin, Xiaotian Xu +4
The scalar products, form factors and correlation functions of the XXZ spin chain with twisted (or antiperiodic) boundary condition are obtained based on the inhomogeneous re…
Surface energy and elementary excitations of the XXZ spin chain with arbitrary boundary fields
Pei Sun, Zhi-Rong Xin, Yi Qiao +5
The thermodynamic properties of the XXZ spin chain with integrable open boundary conditions at the gaped region (i.e., the anisotropic parameter being a real number) are invest…
Exact solution of an integrable spin chain model
Yi Qiao, Zhirong Xin, Junpeng Cao +3
An integrable Heisenberg spin chain with nearest-neighbour couplings, next-nearest-neighbour couplings and Dzyaloshinski-Moriya interacton is constructed. The integrability of the…
Thermodynamic limit and twisted boundary energy of the XXZ spin chain with antiperiodic boundary condition
Zhirong Xin, Yi Qiao, Kun Hao +4
We investigate the thermodynamic limit of the inhomogeneous T-Q relation of the antiferromagnetic XXZ spin chain with antiperiodic boundary condition. It is shown that the contribu…
Twisted boundary energy and low energy excitation of the XXZ spin torus at the ferromagnetic region
Yi Qiao, Zhirong Xin, Kun Hao +4
We investigate the thermodynamic limit of the one-dimensional ferromagnetic XXZ model with twisted (or antiperiodic ) boundary condition. It is shown that the distribution of the B…
Bethe states of the trigonometric SU(3) spin chain with generic open boundaries
Pei Sun, Zhirong Xin, Yi Qiao +7
By combining the algebraic Bethe ansatz and the off-diagonal Bethe ansatz, we investigate the trigonometric SU(3) model with generic open boundaries. The eigenvalues of the transfe…