title: Zeno effect and switching of solitons in nonlinear couplers.
abstract: The Zeno effect is investigated for soliton type pulses in a nonlinear directional coupler with dissipation. The effect consists in increase of the coupler transparency with increase of the dissipative losses in one of the arms. It is shown that localized dissipation can lead to switching of solitons between the arms. Power losses accompanying the switching can be fully compensated by using a combination of dissipative and active (in particular, parity-time-symmetric) segments.
authors.affiliation: Centro de Física Teórica e Computacional, Faculdade de Ciências, Universidade de Lisboa, Avenida Professor Gama Pinto 2, Lisboa 1649-003, Portugal.
authors.forename: F Kh
authors.initials: FKh
authors.lastname: Abdullaev
authors.forename: V V
authors.initials: VV
authors.lastname: Konotop
authors.forename: M
authors.initials: M
authors.lastname: Ögren
authors.forename: M P
authors.initials: MP
authors.lastname: Sørensen