Results 21 to 30 of about 36,271 (185)

Nonlinear interfaces: intrinsically nonparaxial regimes and effects [PDF]

open access: yes, 2009
The behaviour of optical solitons at planar nonlinear boundaries is a problem rich in intrinsically nonparaxial regimes that cannot be fully addressed by theories based on the nonlinear Schrödinger equation.
Boardman A D   +10 more
core   +2 more sources

Study of Attractive Nonlinearity by 1-D Nonlinear Schrödinger Equation in the Bose–Einstein Condensate

open access: yesJournal of Bangladesh Academy of Sciences, 1970
The work represents and investigates the stationary solutions of the one-dimensional Non-linear Schrödinger Equation (NLSE), for attractive non-linearity, in the Bose-Einstein condensates (BEC) under the box boundary condition and calculates the characteristics of internal modes of bright solitons (eigen modes of small perturbation of the condensate ...
MH Rashid   +4 more
openaire   +2 more sources

Does the nonlinear Schroedinger equation correctly describe beam propagation? [PDF]

open access: yes, 2013
The parabolic equation (nonlinear Schrödinger equation) that appears in problems of stationary nonlinear beam propagation (self-focusing) is reconsidered.
a   +10 more
core   +1 more source

Solitary waves due to x(2):x(2) cascading [PDF]

open access: yes, 1994
Solitary waves in materials with a cascaded x(2):x(2) nonlinearity are investigated, and the implications of the robustness hypothesis for these solitary waves are discussed. Both temporal and spatial solitary waves are studied.
Menyuk, Curtis   +2 more
core   +2 more sources

The First Integral Method to the Nonlinear Schrodinger Equations in Higher Dimensions

open access: yesAbstract and Applied Analysis, 2013
The first integral method introduced by Feng is adopted for solving some important nonlinear partial differential equations, including the (2 + 1)-dimensional hyperbolic nonlinear Schrodinger (HNLS) equation, the generalized nonlinear Schrodinger (GNLS ...
Shoukry Ibrahim Atia El-Ganaini
doaj   +1 more source

Strong confinement limit for the nonlinear Schrödinger equation constrained on a curve [PDF]

open access: yes, 2016
International audienceThis paper is devoted to the cubic nonlinear Schrödinger equation in a two dimensional waveguide with shrinking cross section.
Méhats, Florian, Raymond, Nicolas
core   +4 more sources

The optical soliton solutions of nonlinear Schrödinger equation with quintic non-Kerr nonlinear term

open access: yesResults in Physics, 2023
The purpose of this paper is to study the optical soliton solutions of nonlinear Schrödinger equation with quintic non-Kerr nonlinear term describing the nonlinear wave state of optical solitons, which is a noteworthy and important model in optical fiber
Kun Zhang, Tianyong Han
doaj   +1 more source

Approach to first-order exact solutions of the Ablowitz-Ladik equation [PDF]

open access: yes, 2011
We derive exact solutions of the Ablowitz-Ladik (A-L) equation using a special ansatz that linearly relates the real and imaginary parts of the complex function.
Akhmediev, Nail   +2 more
core   +1 more source

Linear and Nonlinear Bullets of the Bogoliubov-de Gennes Excitations [PDF]

open access: yes, 2017
We report on the focalization of Bogoliubov–de Gennes excitations of the nonlinear Schrödinger equation in the defocusing regime (Gross-Pitaevskii equation for repulsive Bose-Einstein condensates) with a spatially modulated periodic potential. Exploiting
Kumar, Shubham   +2 more
core   +2 more sources

Effect of Third-Order Dispersion on the Solitonic Solutions of the Schrödinger Equations with Cubic Nonlinearity

open access: yesAdvances in Mathematical Physics, 2014
We derive the solitonic solution of the nonlinear Schrödinger equation with cubic nonlinearity, complex potentials, and time-dependent coefficients using the Darboux transformation.
H. Chachou Samet   +3 more
doaj   +1 more source

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