Abstract

The first experimental realization of topological insulators [1] constituted the advent of an entirely new field of physics. Their hallmark feature - scatter-free, unidirectional edge states - are of great interest for a wide range of application. Notably, the class of two-dimensional topological insulators is divided by the fermionic or bosonic characteristics of the underlying platform. Fermionic topological systems obey particle-hole as well as time-reversalsymmetry, and are characterized by a ℤ2 topological invariant [2]. On the other hand, topological insulators in bosonic systems were demonstrated in several systems, such as in photonics, acoustics, mechanics and matter waves - all of them relying on time reversal symmetry to be broken. Typically, these latter systems are topologically characterized by the Chern number.

© 2019 IEEE

PDF Article
More Like This
Demonstration of a Photonic Topological ℤ2-Insulator

Lukas J. Maczewsky, Bastian Höckendorf, Mark Kremer, Tobias Biesenthal, Matthias Heinrich, Andreas Alvermann, Holger Fehske, and Alexander Szameit
FM4B.2 CLEO: QELS_Fundamental Science (CLEO_QELS) 2019

Realization of Photonic Anomalous Floquet Topological Insulators

Lukas J. Maczewsky, Julia M. Zeuner, Stefan Nolte, and Alexander Szameit
FM2G.5 CLEO: QELS_Fundamental Science (CLEO_QELS) 2017

Experimental Realization of Photonic Topological Insulators in Synthetic Dimensions

Eran Lustig, Steffen Weimann, Yonatan Plotnik, Miguel A. Bandres, Alexander Szameit, and Mordechay Segev
FM1E.8 CLEO: QELS_Fundamental Science (CLEO_QELS) 2018

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription