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We demonstrate the existence of two species of stable bright solitons, fundamental and dipole ones, in one-dimensional self-defocusing nonlocal media, with the local value of nonlinearity coefficient having one or several minima and growing…

Optics · Physics 2015-06-15 Yingji He , Boris A. Malomed

The study of noncommutative solitons is greatly facilitated if the field equations are integrable, i.e. result from a linear system. For the example of a modified but integrable U(n) sigma model in 2+1 dimensions we employ the dressing…

High Energy Physics - Theory · Physics 2010-02-03 Olaf Lechtenfeld , Alexander D. Popov

We consider two-dimensional spin-orbit coupled atomic Bose-Einstein condensate in a radially-periodic potential. The system supports different types of stable self-sustained states including radially-symmetric vorticity-carrying modes with…

Quantum Gases · Physics 2019-03-28 Yaroslav V. Kartashov , Dmitry A. Zezyulin

Assume a lower-dimensional solitonic structure embedded in a higher dimensional space, e.g., a 1D dark soliton embedded in 2D space, a ring dark soliton in 2D space, a spherical shell soliton in 3D space etc. By extending the Landau…

Pattern Formation and Solitons · Physics 2017-06-21 P. G. Kevrekidis , Wenlong Wang , R. Carretero-Gonzalez , D. J. Frantzeskakis

We address evolution of a spinor polariton condensate in radially periodic potentials. Such potentials allow for the observation of novel nonlinear excitations and support a variety of dynamically stable soliton states never demonstrated…

Mesoscale and Nanoscale Physics · Physics 2019-03-13 Dmitry A. Zezyulin , Yaroslav V. Kartashov , Dmitry V. Skryabin , Ivan A. Shelykh

We predict a variety of composite quiescent and spinning two- and three-dimensional (2D and 3D) self-trapped modes in media with a repulsive nonlinearity whose local strength grows from center to periphery. These are 2D dipoles and…

Pattern Formation and Solitons · Physics 2015-07-21 Rodislav Driben , Nir Dror , Boris Malomed , Torsten Meier

We study localized two- and three-dimensional Langmuir solitons in the framework of model based on generalized nonlinear Schr\"odinger equation that accounts for local and nonlocal contributions to electron-electron nonlinearity. General…

Space Physics · Physics 2007-05-23 T. A. Davydova , A. I. Yakimenko , Yu. A. Zaliznyak

We predict the existence of spatial-spectral vortex solitons in one-dimensional periodic waveguide arrays with quadratic nonlinear response. In such vortices the energy flow forms a closed loop through the simultaneous effects of phase…

Optics · Physics 2015-05-13 Zhiyong Xu , Andrey A. Sukhorukov

The conditions under which stable evolution of two nonlinear interacting waves are derived within the context of nematic crystals. Two cases are considered: plane waves and solitons. In the first case, the modulation instability analysis…

Pattern Formation and Solitons · Physics 2016-10-12 Theodoros P. Horikis

This article presents an overview of experimental efforts in recent years related to multidimensional solitons in Bose-Einstein condensates. We discuss the techniques used to generate and observe multidimensional nonlinear waves in…

Other Condensed Matter · Physics 2010-06-01 Joachim Brand , L. D. Carr , B. P. Anderson

Stability of soliton families in one-dimensional nonlinear Schroedinger equations with non-parity-time (PT)-symmetric complex potentials is investigated numerically. It is shown that these solitons can be linearly stable in a wide range of…

Pattern Formation and Solitons · Physics 2016-11-23 Jianke Yang , Sean Nixon

We demonstrate that the commonly known concept, which treats solitons as nonsingular solutions produced by the interplay of nonlinear self-attraction and linear dispersion, may be extended to include modes with a relatively weak singularity…

Pattern Formation and Solitons · Physics 2020-02-19 Hidetsugu Sakaguchi , Boris A. Malomed

We demonstrate the existence of stable collective excitation in the form of "supersolitons" propagating through chains of solitons with alternating signs (i.e., Newton's cradles built of solitons) in nonlinear optical couplers, including…

Optics · Physics 2015-06-22 Pengfei Li , Lu Li , Boris A. Malomed

We study symmetric and asymmetric optical multi-peak solitons on a continuous wave background in the femtosecond regime of a single-mode fiber. Key characteristics of such multi-peak solitons, as the formation mechanism, propagation…

Pattern Formation and Solitons · Physics 2016-11-02 Chong Liu , Zhan-Ying Yang , Li-Chen Zhao , Liang Duan , Guangye Yang , Wen-Li Yang

It is known that, in continuous media, composite solitons with hidden vorticity, which are built of two mutually symmetric vortical components whose total angular momentum is zero, may be stable while their counterparts with explicit…

Optics · Physics 2015-06-12 Daniel Leykam , Boris Malomed , Anton S. Desyatnikov

We consider a prototypical dynamical lattice model, namely, the discrete nonlinear Schroedinger equation on nonsquare lattice geometries. We present a systematic classification of the solutions that arise in principal six-lattice-site and…

Pattern Formation and Solitons · Physics 2009-11-13 K. J. H. Law , P. G. Kevrekidis , V. Koukouloyannis , I. Kourakis , D. J. Frantzeskakis , A. R. Bishop

We have performed numerical analysis of the two-dimensional (2D) soliton solutions in Bose-Einstein condensates with nonlocal dipole-dipole interactions. For the modified 2D Gross-Pitaevski equation with nonlocal and attractive local terms,…

Pattern Formation and Solitons · Physics 2015-06-26 V. M. Lashkin

We consider dark solitons and their stability in spin-orbit coupled polariton condensates. The system supports spinor solitons of two types: conventional (symmetric) dark solitons and asymmetric half-dark solitons. They demonstrate…

Mesoscale and Nanoscale Physics · Physics 2018-09-25 Dmitry A. Zezyulin , Yaroslav V. Kartashov

We study the correspondence between modulational instability and types of fundamental nonlinear excitation in a nonlinear fiber with both third-order and fourth-order effects. Some stable soliton excitations are obtained in modulational…

Pattern Formation and Solitons · Physics 2017-04-26 Liang Duan , Li-Chen Zhao , Wen-hao Xu , Chong Liu , Zhan-Ying Yang , Wen-Li Yang

Using the variational approximation(VA) and direct simulations, we find stable 2D and 3D solitons in the self-attractive Gross-Pitaevskii equation (GPE) with a potential which is uniform in one direction ($z$) and periodic in the others…

Soft Condensed Matter · Physics 2009-09-13 B. B. Baizakov , B. A. Malomed , M. Salerno
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