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We study the optimal control formulation for stochastic nonlinear Schrodinger equation (SNLSE) on a finite graph. By viewing the SNLSE as a stochastic Wasserstein Hamiltonian flow on density manifold, we show the global existence of a…

Optimization and Control · Mathematics 2022-09-13 Jianbo Cui , Shu Liu , Haomin Zhou

We formulate a damped oscillating particle method to solve the stationary nonlinear Schr\"{o}dinger equation (NLSE). The ground state solutions are found by a converging damped oscillating evolution equation that can be discretized with…

Computational Physics · Physics 2016-03-03 P. Sandin , M. Ogren , M. Gulliksson

We consider an integrable generalization of the nonlinear Schr\"odinger (NLS) equation that was recently derived by one of the authors using bi-Hamiltonian methods. This equation is related to the NLS equation in the same way that the…

Exactly Solvable and Integrable Systems · Physics 2008-12-09 J. Lenells , A. S. Fokas

We analize the Nonlinear Schr\"odinger Equation.

Analysis of PDEs · Mathematics 2016-09-02 Elias Rios

Spectral method related to Lame equation with finite-gap potential is used to study the optical cascading equations. These equations are known not to be integrable by inverse scattering method. Due to "partial integrability" two-gap…

Exactly Solvable and Integrable Systems · Physics 2007-05-23 N. A. Kostov

We review work on the Discrete Nonlinear Schr\"odinger (DNLS) equation over the last two decades.

Pattern Formation and Solitons · Physics 2007-05-23 J. Chris Eilbeck , Magnus Johansson

In this paper, we investigate a general integrable nonlocal coupled nonlinear schr\"odinger (NLS) system with the the parity-time (PT) symmetry, which contains not only the nonlocal self-phase modulation and the nonlocal cross-phase…

Exactly Solvable and Integrable Systems · Physics 2015-05-21 Cai-Qin Song , Dong-Mei Xiao , Zuo-Nong Zhu

In this paper, we introduce some new ideas to study Schrodinger equations in RN with power-type nonlinearities.

Analysis of PDEs · Mathematics 2021-12-10 Juncheng Wei , Yuanze Wu

We relate the scattering theory of the focusing AKNS system with vanishing boundary conditions to that of the matrix Schroedinger equation. The corresponding Miura transformation which allows this connection, converts the focusing matrix…

Exactly Solvable and Integrable Systems · Physics 2021-09-27 Francesco Demontis , Cornelis van der Mee

We further elaborate on the solvability of stochastic partial differential equations (SPDEs). We shall discuss non-autonomous partial differential equations with an abstract realization of the stochastic integral on the right-hand side. Our…

Analysis of PDEs · Mathematics 2018-09-03 Rainer Picard , Sascha Trostorff , Marcus Waurick

Addition of higher nonlinear terms to the well known integrable nonlinear Schr\"odinger (NLS) equations, keeping the same linear dispersion (LD) usually makes the system nonintegrable. We present a systematic method through a novel…

Exactly Solvable and Integrable Systems · Physics 2008-04-24 Anjan Kundu

We introduce a nonlinear Schroedinger equation (NLSE) which combines the pseudo-stimulated-Raman-scattering (pseudo-SRS) term, i.e., a non-conservative cubic one with the first spatial derivative, and an external potential, which helps to…

Plasma Physics · Physics 2020-02-26 E. M. Gromov , B. A. Malomed

The integrable nonlocal nonlinear Schrodinger (NNLS) equation with the self-induced parity-time-symmetric potential [Phys. Rev. Lett. 110 (2013) 064105] is investigated, which is an integrable extension of the standard NLS equation. Its…

Exactly Solvable and Integrable Systems · Physics 2017-04-19 Xiao-Yong Wen , Zhenya Yan , Yunqing Yang

A nonlinear Schr\"odinger equation with external potential $-(t+b)^{-1}$ is considered and its explicit solutions are constructed.

Exactly Solvable and Integrable Systems · Physics 2007-05-23 Alexander Sakhnovich

We investigate the well-posedness theory of the 2-D fractional nonlinear Schr\"odinger equation (NLSE) with a mixed degree of derivatives. Motivated by models in optics and photonics where the light propagation is governed by non-quadratic,…

Analysis of PDEs · Mathematics 2023-09-29 Brian Choi , Alejandro Aceves

In this paper, we develop an inverse scattering transform for the integrable focusing nonlinear Schr\"odinger (NLS) equation on the half-line subject to a class of boundary conditions. The method is based on the notions of integrable…

Exactly Solvable and Integrable Systems · Physics 2021-06-22 Cheng Zhang

We present the new extended supersymmetrization of the Nonlinear Schrodinger Equation by introducing two superbosons fields with the different gradation. Our model is different from this considered by Toppan and in the reduced case…

High Energy Physics - Theory · Physics 2015-06-26 Ziemowit Popowicz

In this paper we consider a one-dimensional non-linear Schroedinger equation (NLSE) with a periodic potential. In the semiclassical limit we prove that the stationary solutions of the Bose-Hubbard equation approximate the stationary…

Mathematical Physics · Physics 2012-08-30 Reika Fukuizumi , Andrea Sacchetti

The theory of group classification of differential equations is analyzed, substantially extended and enhanced based on the new notions of conditional equivalence group and normalized class of differential equations. Effective new techniques…

Mathematical Physics · Physics 2010-11-03 Roman O. Popovych , Michael Kunzinger , Homayoon Eshraghi

The nonlinear Schr\"{o}dinger equation (NLSE) is one of the most important equations in quantum mechanics, and appears in a wide range of applications including optical fibre communications, plasma physics and biomolecule dynamics. It is a…

Numerical Analysis · Mathematics 2019-07-05 J. A. Mackenzie , W. R. Mekwi