3 papers
hep-th2026
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-th2025
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…
hep-th2025
Topological zero modes and bounded modes at smooth domain walls: Exact solutions and dualities
Pasquale Marra, Angela Nigro
Topology describes global quantities invariant under continuous deformations, such as the number of elementary excitations at a phase boundary, without detailing specifics. Convers…