25 citations · 57 across the 7 of their papers we have counts for
4 papers · 1 filter
Non-Bloch Dirac Points and Phase Diagram in the Stacked Non-Hermitian SSH Model
Megan Schoenzeit, Chang Shu, Kai Zhang +1
Topological semimetals exhibit protected band crossings in momentum space, accompanied by corresponding surface states. Non-Hermitian Hamiltonians introduce geometry-sensitive feat…
Ultra spectral sensitivity and non-local bi-impurity bound states from quasi-long-range non-hermitian skin modes
Chang Shu, Kai Zhang, Kai Sun
A fundamental tenet of quantum mechanics is that the energy spectrum of a quantum system shall remain stable against infinitesimally weak and spatially confined perturbations. In t…
Algebraic non-Hermitian skin effect and generalized Fermi surface formula in arbitrary dimensions
Kai Zhang, Chang Shu, Kai Sun
The non-Hermitian skin effect, characterized by a proliferation of exponentially localized edge modes in open-boundary systems, has led to the discovery of numerous novel physical…
Universal spectral moment theorem and its applications in non-Hermitian systems
Nan Cheng, Chang Shu, Kai Zhang +2
The high sensitivity of the spectrum and wavefunctions to boundary conditions, termed the non-Hermitian skin effect, represents a fundamental aspect of non-Hermitian systems. While…