Susanto, H.Kevrekidis, P. G.Malomed, B. A. [UNESP]Abdullaev, F. Kh. [UNESP]2014-05-202014-05-202008-03-03Physics Letters A. Amsterdam: Elsevier B.V., v. 372, n. 10, p. 1631-1638, 2008.0375-9601http://hdl.handle.net/11449/24070We examine two-component Gross-Pitaevskii equations with nonlinear and linear couplings, assuming self-attraction in one species and self-repulsion in the other, while the nonlinear inter-species coupling is also repulsive. For initial states with the condensate placed in the self-attractive component, a sufficiently strong linear coupling switches the collapse into decay (in the free space). Setting the linear-coupling coefficient to be time-periodic (alternating between positive and negative values, with zero mean value) can make localized states quasi-stable for the parameter ranges considered herein, but they slowly decay. The 2D states can then be completely stabilized by a weak trapping potential. In the case of the high-frequency modulation of the coupling constant, averaged equations are derived, which demonstrate good agreement with numerical solutions of the full equations. (C) 2007 Elsevier B.V. All rights reserved.1631-1638engnonlinear schrodinger equationsmultiple componentslinear couplingArtigo10.1016/j.physleta.2007.09.073WOS:000254033900016Acesso restrito