Emerging Anomalous In-Gap Modes In Non Hermitian System

S. Jana*, L. Sirota

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Non-Hermitian systems have emerged recently due to their unique properties, like faster propagation of wave packets in contrast to Hermitian counterparts, non-reciprocal wave guiding, etc. In general, non-reciprocity can be tailored through unequal directional hopping between two different sites and also via onsite gain/loss balancing. The goal of this research is to examine the impact of both non-Hermitian constitutive parameters, i.e directionality and gain/loss, in a coupled one-dimensional (1D) double-chain network. The directional hopping in a 1D system causes the localization of bulk modes at the boundaries, known as non-Hermitian skin effect (NHSE), whereas the precise tuning of the gain/loss parameters leads to a the emergence of zero energy in-gap modes.

Original languageEnglish
Title of host publication17th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages145-147
Number of pages3
ISBN (Electronic)9798350332445
DOIs
StatePublished - 2023
Event17th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2023 - Crete, Greece
Duration: 11 Sep 202316 Sep 2023

Publication series

Name17th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2023

Conference

Conference17th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2023
Country/TerritoryGreece
CityCrete
Period11/09/2316/09/23

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