Solitons in a medium with linear dissipation and localized gain |
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Authors: | Zezyulin Dmitry A Kartashov Yaroslav V Konotop Vladimir V |
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Institution: | Centro de Física Teórica e Computacional, and Departamento de Física, Faculdade de Ciências, Universidade de Lisboa, Avenida Professor Gama Pinto 2, Lisboa 1649-003, Portugal. zezyulin@cii.fc.ul.pt |
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Abstract: | We present a variety of dissipative solitons and breathing modes in a medium with localized gain and homogeneous linear dissipation. The system possesses a number of unusual properties, like exponentially localized modes in both focusing and defocusing media, existence of modes in focusing media at negative propagation constant values, simultaneous existence of stable symmetric and antisymmetric localized modes when the gain landscape possesses two local maxima, as well as the existence of stable breathing solutions. |
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