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math-ph2020★ 6 cited
Exact solutions of the quantum spin chain
Guang-Liang Li, Panpan Xue, Pei Sun +5
We study the exact solutions of quantum integrable model associated with the Lie algebra, with either a periodic or an open one with off-diagonal boundary reflections, by gen…
math-ph2020★ 20 cited
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…