Name | Ritu Nehra |
---|---|

Affiliation/Institute | Ben-Gurion University |

Title | Dynamical characterization of non-Hermitian topological phases |

Abstract (text only) | In recent years, a highly active area of research has focused on investigating nontrivial topological phases within Non-Hermitian systems. Unlike Hermitian systems, which exhibit real energy spectra, the energy spectra of non-Hermitian Hamiltonian are complex. Among the simplest one-dimensional non-Hermitian systems is the non-reciprocal Su-Schrieffer-Heeger (NSSH) model, which displays three distinct topological phases determined by the real and imaginary energy gap. The classification of these phases relies on a suitable topological invariant known as the complex Zak phase, as described in a recent study [1]. I will briefly discuss the phase boundaries of the non-Hermitian SSH model in the equilibrium setup before addressing the fundamental question: is there any special dynamical characteristic of the non-Hermitian topological phases? To answer that, I will |