activity
19962022
most citedIntrinsic relation between ground-state fidelity and the characterization of a quantum phase transition

174 citations · 2.7k across the 111 of their papers we have counts for

collaborators

111 papers

math-ph2022★ 4 cited

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…

math-ph2022★ 6 cited

Spectrum of the quantum integrable spin chain with generic boundary fields

Guang-Liang Li, Junpeng Cao, Wen-Li Yang +2

Exact solution of the quantum integrable spin chain with generic integrable boundary fields is constructed. It is found that the transfer matrix of this model can be fa…

math-ph2021★ 9 cited

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…

math-ph2021★ 3 cited

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…

cond-mat.stat-mech2021★ 21 cited

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…

math-ph2020

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…