Topological states of non-Hermitian systems

Autor:	Alvarez, V. M. Martinez, Vargas, J. E. Barrios, Berdakin, M., Torres, L. E. F. Foa
Rok vydání:	2018
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Quantum Physics
Zdroj:	Eur. Phys. J. Special Topics 227, 1295 (2018)
Druh dokumentu:	Working Paper
DOI:	10.1140/epjst/e2018-800091-5
Popis:	Recently, the search for topological states of matter has turned to non-Hermitian systems, which exhibit a rich variety of unique properties without Hermitian counterparts. Lattices modeled through non-Hermitian Hamiltonians appear in the context of photonic systems, where one needs to account for gain and loss, circuits of resonators, and also when modeling the lifetime due to interactions in condensed matter systems. Here we provide a brief overview of this rapidly growing subject, the search for topological states and a bulk-boundary correspondence in non-Hermitian systems. Comment: Invited short review for the special issue "Topological States of Matter: Theory and Applications"
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1805.08200 Zobrazit plný text záznamu View this record from Arxiv