title: Binary parity-time-symmetric nonlinear lattices with balanced gain and loss.
abstract: We study nonlinear binary arrays composed of parity-time-symmetric optical waveguides with gain and loss. We demonstrate that such nonlinear binary lattices support stable discrete solitons, which can be adiabatically tuned and switched through nonlinear symmetry breaking by varying gain and loss parameters.
authors.affiliation: Institute for Metals Superplasticity Problems, Russian Academy of Science, Ufa 450001, Russia.
authors.forename: Sergey V
authors.initials: SV
authors.lastname: Dmitriev
authors.forename: Andrey A
authors.initials: AA
authors.lastname: Sukhorukov
authors.forename: Yuri S
authors.initials: YS
authors.lastname: Kivshar