PT symmetric Floquet topological phase
Physics Department, Anadolu University,
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Received in final form: 3 June 2015
Published online: 28 July 2015
In this paper, we study the existence of Floquet topological insulators for 𝒫𝒯 symmetric non-Hermitian Hamiltonians. We consider an array of waveguide in 1D with periodically changing non-Hermitian potential and predict the existence of Floquet topological insulators in the system. We also extend the concept of Floquet topological phase to a two dimensional non-Hermitian system.
Key words: Optical Phenomena and Photonics
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2015