2 papers
quant-ph2022
Nonlocal pseudospin dynamics in a quantum Ising chain
K. L. Zhang, Z. Song
The existence of topological zero modes in nontrivial phase of quantum Ising chain results in not only the Kramers-like degeneracy spectrum, but also dynamic response for non-Hermi…
cond-mat.supr-con2018
Majorana flat band edge modes of topological gapless phase in 2D Kitaev square lattice
Kunliang Zhang, Peng Wang, Zhi Song
We study a Kitaev model on a square lattice, which describes topologically trivial superconductor when gap opens, while supports topological gapless phase when gap closes. The dege…