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PT Symmetric Floquet Topological Phase (1507.01415v1)
Published 6 Jul 2015 in cond-mat.mes-hall and quant-ph
Abstract: 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.