Fronts in a piecewise linear Schrödinger equation
SourcePhysics Letters, Section A: General, Atomic and Solid State Physics
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We examine the conditions that are necessary for the appearance of fronts as solutions of nonlinear Schrödinger-like equations. We show that fronts can appear even when the potential in these equations has only one minimum. We present analytic expressions for such fronts in a piecewise linear Schrödinger equation and in other systems. © 2002 Elsevier Science B.V. All rights reserved.