Journal
PHYSICS LETTERS A
Volume 359, Issue 6, Pages 627-629Publisher
ELSEVIER
DOI: 10.1016/j.physleta.2006.07.026
Keywords
semi-inverse method; variational principle; coupled nonlinear Schrodinger equations
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Via He's semi-inverse method, a variational principle is established for coupled nonlinear Schrodinger equations arising in nonlinear directional coupler. This Letter shows the effectiveness and convenience of the semi-inverse method. (c) 2006 Elsevier B.V. All rights reserved.
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