13 citations · 25 across the 4 of their papers we have counts for
4 papers
Dynamic transition from insulating state to eta-pairing state in a composite non-Hermitian system
X. M. Yang, Z. Song
The dynamics of Hermitian many-body quantum systems has long been a challenging subject due to the complexity induced by the particle-particle interactions. In contrast, this diffi…
Resonant generation of -wave Cooper pair in non-Hermitian Kitaev chain at exceptional point
X. M. Yang, Z. Song
We investigate a non-Hermitian extension of Kitaev chain by considering imaginary -wave pairing amplitudes. The exact solution shows that the phase diagram consists two phases w…
Knot Topology in Quantum Spin System
X. M. Yang, L. Jin, Z. Song
Knot theory provides a powerful tool for the understanding of topological matters in biology, chemistry, and physics. Here knot theory is introduced to describe topological phases…
Quantum phase transition without gap opening
X. M. Yang, G. Zhang, Z. Song
Quantum phase transitions (QPTs), including symmetry breaking and topological types, always associated with gap closing and opening. We analyze the topological features of the quan…