Results 81 to 90 of about 433,700 (300)

SOLUCIÓN DE LA ECUACIÓN NO LINEAL DE SCHRODINGER (1+1) EN UN MEDIO KERR

Redes de Ingeniería, 2015
Se presenta un marco teórico y se muestra una simulación numérica de la propagación de solitones. Con especial atención a los solitones ópticos espaciales, se calcula analíticamente el perfil de solitón correspondiente a la ecuación Schrodinger no-lineal
Francis Armando Segovia, Emilse Cabrera
doaj   +1 more source

Soliton Turbulence in Approximate and Exact Models for Deep Water Waves

Fluids, 2020
We investigate and compare soliton turbulence appearing as a result of modulational instability of the homogeneous wave train in three nonlinear models for surface gravity waves: the nonlinear Schrödinger equation, the super compact Zakharov equation ...
Dmitry Kachulin, Alexander Dyachenko, Vladimir Zakharov   +2 more
doaj   +1 more source

Families of Solutions of Multitemporal Nonlinear Schrödinger PDE

Mathematics, 2021
The multitemporal nonlinear Schrödinger PDE (with oblique derivative) was stated for the first time in our research group as a universal amplitude equation which can be derived via a multiple scaling analysis in order to describe slow modulations of the ...
Cristian Ghiu, Constantin Udriste, Lavinia Laura Petrescu   +2 more
doaj   +1 more source

What to Make and How to Make It: Combining Machine Learning and Statistical Learning to Design New Materials

Advanced Intelligent Discovery, EarlyView.
Combining machine learning and probabilistic statistical learning is a powerful way to discover and design new materials. A variety of machine learning approaches can be used to identify promising candidates for target applications, and causal inference can help identify potential ways to make them a reality.
Jonathan Y. C. Ting, Amanda S. Barnard
wiley   +1 more source

(Semi)classical limit of the Hartree equation with harmonic potential

, 2004
Nonlinear Schrodinger Equations (NLS) of the Hartree type occur in the modeling of quantum semiconductor devices. Their "semiclassical" limit of vanishing (scaled) Planck constant is both a mathematical challenge and practically relevant when coupling ...
Cazenave Thierry, Hans Peter Stimming, Hayashi Nakao, Kamvissis Spyridon, Norbert J. Mauser, Rémi Carles, Sparber Christof   +6 more
core   +2 more sources

Structure and Spectroscopic Characterisation of Phenanthroline‐Based Iodobismuthate(III) Complexes Utilised for Raw Acoustic Signal Classification

Advanced Intelligent Discovery, EarlyView.
Memristors based on trimethylsulfonium (phenanthroline)tetraiodobismuthate have been utilised as a nonlinear node in a delayed feedback reservoir. This system allowed an efficient classification of acoustic signals, namely differentiation of vocalisation of the brushtail possum (Trichosurus vulpecula).
Ewelina Cechosz, Gisya Abdi, Andrzej Sławek, Marlena Gryl, Konrad Szaciłowski   +4 more
wiley   +1 more source

Unveiling new exact solutions of the unstable nonlinear Schrödinger equation using the improved modified Sardar sub-equation method

Results in Physics
The improved modified Sardar sub-equation method is used in this study to look into the complex domain of the unstable nonlinear Schrödinger equation, which is a basic idea in quantum physics.
Muhammad Ishfaq Khan, Aamir Farooq, Kottakkaran Sooppy Nisar, Nehad Ali Shah   +3 more
doaj   +1 more source

Modulation instability analysis of modify unstable nonlinear schrodinger dynamical equation and its optical soliton solutions

Results in Physics, 2017
The nonlinear Schrödinger equations (NLSEs) describe the promulgation of ultra-short pluse in optical fibers. The modify unstable nonlinear Schrödinger equation (mUNLSE) is a universal equation of the class of nonlinear integrable systems in NLSEs, which
Muhammad Arshad, Aly R. Seadawy, Dianchen Lu, Wang Jun   +3 more
doaj   +1 more source

Solving a nonlinear fractional Schrödinger equation using cubic B-splines

Advances in Difference Equations, 2020
We study the inhomogeneous nonlinear time-fractional Schrödinger equation for linear potential, where the order of fractional time derivative parameter α varies between 0 < α < 1 $0 < \alpha < 1$ .
M. Erfanian, H. Zeidabadi, M. Rashki, H. Borzouei   +3 more
doaj   +1 more source

Conformal symmetry and the nonlinear Schrodinger equation

, 2001
We show that the width of the wave-packet of a class of generalized nonlinear Schrodinger equations (NLSE) trapped in an arbitrary time-dependent harmonic well in any dimensions is universally determined by the same Hill's equation.
Ghosh, Pijush K.
core   +1 more source