12 papers · 1 filter
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 -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…
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…