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quant-ph2019★ 13 cited
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…
cond-mat.str-el2019
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…