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Exponential stability for the nonlinear Schrödinger equation with locally distributed damping
(Maltepe Üniversitesi, 2019) Cavalcanti, Marcelo M.; Correa, Wellington J.; Özsarı, Turker; Sepulveda, Mauricio; Vejar Asem, Rodrigo
This talk is concerned with the defocusing nonlinear Schr¨odinger equation with a locally distributed damping on a smooth bounded domain. We first construct approximate solutions for this model by using the theory of monotone operators. We show that these approximate solutions decay exponentially fast in the L 2 -sense by using the multiplier technique and a unique continuation property. Then, we prove the global existence as well as the L 2 -decay of solutions for the original model by passing to the limit and using a weak lower semicontinuity argument, respectively. Finally, we implement a precise and efficient algorithm for studying the exponential decay established in the first part of the paper numerically. Our simulations illustrate the efficacy of the proposed control design.