10 papers
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…