Abstract

We demonstrate theoretically and experimentally topological interface states in a passive effective PT-symmetric dimerized waveguide array. The PT-symmetric system has unbroken PT symmetry: all eigenvalues in the spectrum are real, despite the system’s non-Hermiticity.

© 2015 Optical Society of America

PDF Article
More Like This
Photonic Parity-Time Symmetric Topological Edge States in a Two-Dimensional Lattice

Jiho Noh, Wladimir A. Benalcazar, Taylor L. Hughes, and Mikael C. Rechtsman
FM2Q.2 CLEO: QELS_Fundamental Science (CLEO_QELS) 2018

Topological Insulators in PT-Symmetric Lattices

Gal Harari, Yonatan Plotnik, Miguel A. Bandres, Yaakov Lumer, Mikael Rechtsman, and Mordechai Segev
FTh3D.3 CLEO: QELS_Fundamental Science (CLEO_QELS) 2015

Nonlinear Control of PT-symmetry and Topological States

Shiqi Xia, Dimitrios Kaltsas, Daohong Song, Ioannis Komis, Jingjun Xu, Alexander Szameit, Hrvoje Buljan, Konstantinos G. Makris, and Zhigang Chen
FTu2L.1 CLEO: QELS_Fundamental Science (CLEO_QELS) 2021