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Identifier	000433829
Title	Non-Hermitian topological lattices
Alternative Title	Μη-Ερμιτιανα τοπολογικά πλέγματα
Author	Καλτσάς, Δημήτρης Η.
Thesis advisor	Μακρής, Κωνσταντίνος
Abstract	Recent advances in the fields of topological photonics and non hermitian optics have introduced intiguing ideas which have attracted a lot of attention due to potential applications. However, endeavours to explore the interplay between the robustness due to topology and the inherent sensitivity of the non hermitian systems are scarce, especially in the non linear regime. In this thesis, we explore the interplay between these two antagonostic phenomena and proposer a way to control the dynamics of our system by controlling a single channel. Furthermore, we identify a third order exceptional point of a topological lattice, and investigate systematically the role of topology on the sensitivity of non hermitian systems close to the exceptional point.
Language	English
Subject	Non_Hermiticity
	Nonlinear dynamics
	Photonics
	Topology
	Μη γραμμική δυναμική
	Μη-Ερμιτιανα συστήματα
	Τοπολογία
	Φωτονική
Issue date	2020-11-20
Collection	School/Department--School of Sciences and Engineering--Department of Physics--Post-graduate theses
	Type of Work--Post-graduate theses
Views	368

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