3 papers
quant-ph2026
Controlling energy spectra and skin effect via boundary conditions in non-Hermitian lattices
S Rahul, Pasquale Marra
Non-Hermitian systems exhibit unique spectral properties, including the non-Hermitian skin effect and exceptional points, often influenced by boundary conditions. The modulation of…
hep-th2025
Nonhermitian topological zero modes at smooth domain walls: Exact solutions
Pasquale Marra, Angela Nigro
The bulk-boundary correspondence predicts the existence of boundary modes localized at the edges of topologically nontrivial systems. The wavefunctions of hermitian boundary modes…
hep-th2024
Zero energy modes with Gaussian, exponential, or polynomial decay: Exact solutions in hermitian and nonhermitian regimes
Pasquale Marra, Angela Nigro
Topological zero modes in topological insulators or superconductors are exponentially localized at the phase transition between a topologically trivial and nontrivial phase. These…