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Related papers: Where solitons are in a KdV soliton gas

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Assuming that the nucleus can be treated as a perfect fluid we study the conditions for the formation and propagation of Korteweg-de Vries (KdV) solitons in nuclear matter. The KdV equation is obtained from the Euler and continuity…

Nuclear Theory · Physics 2009-11-11 D. A. Fogaça , F. S. Navarra

We consider large-scale dynamics of non-equilibrium dense soliton gas for the Korteweg-de Vries (KdV) equation in the special "condensate" limit. We prove that in this limit the integro-differential kinetic equation for the spectral density…

Pattern Formation and Solitons · Physics 2024-05-21 T. Congy , G. A. El , G. Roberti , A. Tovbis

We establish the explicit correspondence between the theory of soliton gases in classical integrable dispersive hydrodynamics, and generalized hydrodynamics (GHD), the hydrodynamic theory for many-body quantum and classical integrable…

Pattern Formation and Solitons · Physics 2022-08-31 Thibault Bonnemain , Benjamin Doyon , Gennady A. El

All solutions of the Korteweg -- de Vries equation that are bounded on the real line are physically relevant, depending on the application area of interest. Usually, both analytical and numerical approaches consider solution profiles that…

Mathematical Physics · Physics 2015-06-16 Thomas Trogdon , Bernard Deconinck

In a previous work, assuming that the nucleus can be treated as a perfect fluid, we have studied the propagation of perturbations in the baryon density. For a given equation of state we have derived a Korteweg - de Vries (KdV) equation from…

Nuclear Theory · Physics 2008-11-26 D. A. Fogaça , F. S. Navarra

We study soliton solutions to a generalized Korteweg - de Vries (KdV) equation with a saturated nonlinearity, following the line of inquiry of the authors for the nonlinear Schr\"odinger equation (NLS). KdV with such a nonlinearity is known…

Pattern Formation and Solitons · Physics 2013-01-23 Jeremy L. Marzuola , Sarah Raynor , Gideon Simpson

We report on the experimental observation of solitons propagating along a torus of fluid. We show that such a periodic system leads to significant differences compared to the classical plane geometry. In particular, we highlight the…

Pattern Formation and Solitons · Physics 2023-09-29 Filip Novkoski , Chi-Tuong Pham , Eric Falcon

The soliton resolution for the focusing modified Korteweg-de vries (mKdV) equation is established for initial conditions in some weighted Sobolev spaces. Our approach is based on the nonlinear steepest descent method and its reformulation…

Analysis of PDEs · Mathematics 2019-10-11 Gong Chen , Jiaqi Liu

We study the conditions for the formation and propagation of Korteweg-de Vries (KdV) solitons in nuclear matter. In a previous work we have derived a KdV equation from Euler and continuity equations in non-relativistic hydrodynamics. In the…

Nuclear Theory · Physics 2013-05-07 D. A. Fogaça , F. S. Navarra

The supercritical composition of a plasma model with cold positive ions in the presence of a two-temperature electron population is investigated, initially by a reductive perturbation approach, under the combined requirements that there be…

Pattern Formation and Solitons · Physics 2016-04-13 Frank Verheest , Carel P. Olivier , Willy A. Hereman

The concept of soliton gas was introduced in 1971 by V. Zakharov as an infinite collection of weakly interacting solitons in the framework of Korteweg-de Vries (KdV) equation. In this theoretical construction of a diluted soliton gas,…

Exactly Solvable and Integrable Systems · Physics 2023-04-14 Pierre Suret , Stephane Randoux , Andrey Gelash , Dmitry Agafontsev , Benjamin Doyon , Gennady El

We consider soliton gas solutions of the modified Korteweg-de Vries (mKdV) equation, where the point spectrum of the condensate is located within a bounded domain in the upper half-plane. We first demonstrate that when the domain is a…

Mathematical Physics · Physics 2024-12-30 Ruihong Ma , Engui Fan

Localized patterns and nonlinear oscillation formation on the bounded free surface of an ideal incompressible liquid are analytically investigated . Cnoidal modes, solitons and compactons, as traveling non-axially symmetric shapes are…

Fluid Dynamics · Physics 2009-11-06 Andrei Ludu , Jerry P. Draayer

We found, through analytical and numerical methods, new towers of infinite number of asymptotically conserved charges for deformations of the Korteweg-de Vries equation (KdV). It is shown analytically that the standard KdV also exhibits…

High Energy Physics - Theory · Physics 2020-06-02 H. Blas , R. Ochoa , D. Suarez

By introducing in the hydrodynamic model, i.e. in the hydrodynamic equations and the corresponding boundary conditions, the higher order terms in the deviation of the shape, we obtain in the second order the Korteweg de Vries equation…

Nuclear Theory · Physics 2008-11-26 Andrei Ludu , Aurel Sandulescu , Walter Greiner

In a recent paper, Kenig, Ponce and Vega study the low regularity behavior of the focusing nonlinear Schr\"odinger (NLS), focusing modified Korteweg-de Vries (mKdV), and complex Korteweg-de Vries (KdV) equations. Using soliton and breather…

Analysis of PDEs · Mathematics 2007-05-23 Michael Christ , James Colliander , Terence Tao

We review spectral theory of soliton gases in integrable dispersive hydrodynamic systems. We first present a phenomenological approach based on the consideration of phase shifts in pairwise soliton collisions and leading to the kinetic…

Pattern Formation and Solitons · Physics 2023-06-14 Gennady A. El

We study the stability and dynamics of solitons in the Korteweg-de Vries (KdV) equation in the presence of noise and deterministic forcing. The noise is space-dependent and statistically translation-invariant. We show that, for small…

Analysis of PDEs · Mathematics 2025-04-25 Rik W. S. Westdorp , Hermen Jan Hupkes

The existence, stability and other dynamical properties of a new type of multi-dimensional (2D or 3D) solitons supported by a transverse low-dimensional (1D or 2D, respectively) periodic potential in the nonlinear Schr\"{o}dinger equation…

Pattern Formation and Solitons · Physics 2009-11-11 Bakhtiyor B. Baizakov , Boris A. Malomed , Mario Salerno

We prove existence, uniqueness and non-negativity of solutions of certain integral equations describing the density of states $u(z)$ in the spectral theory of soliton gases for the one dimensional integrable focusing Nonlinear…

Mathematical Physics · Physics 2021-10-27 Arno Kuijlaars , Alexander Tovbis
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