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Wecritically review the recent progress in understanding soliton propagation in birefringent optical fibers.By constructing the most general bright two-soliton solution of the integrable coupled nonlinear Schroedinger equation (Manakov…

可精确求解与可积系统 · 物理学 2019-08-17 M. Lakshmanan , T. Kanna , R. Radhakrishnan

This paper a kinetic Boltzmann equation having a general type of collision kernel and modelling spin-dependent Fermi gases at low temperatures modelled by a kinetic equation of Boltzmann type. The distribution functions have values in the…

量子气体 · 物理学 2013-06-18 L. Arkeryd

This paper is devoted to diffusion limits of linear Boltzmann equations. When the equilibrium distribution function is Maxwellian distribution, it is well known that for an appropriate time scale, the small mean free path limit gives rise…

偏微分方程分析 · 数学 2014-01-15 Antoine Mellet , Stéphane Mischler , Clément Mouhot

A semi-classical approach to the study of the evolution of anyonic excitations--elementary particles with fractional statistics, complementing bosons and fermions--is through the Boltzmann equation for anyons. This work reviews a…

数学物理 · 物理学 2025-05-29 Niclas Bernhoff

It is an open question whether the fractional parts of nonlinear polynomials at integers have the same fine-scale statistics as a Poisson point process. Most results towards an affirmative answer have so far been restricted to almost sure…

数论 · 数学 2019-02-20 Jens Marklof , Nadav Yesha

We consider an inverse problem for the nonlinear Boltzmann equation with a time-dependent kernel in dimensions $n\ge 2$. We establish a logarithm-type stability result for the collision kernel from measurements under certain additional…

偏微分方程分析 · 数学 2023-09-08 Ru-Yu Lai , Lili Yan

This article introduces a conservative formulation of the Standard Enskog equation and the Povzner equation, both of which generalize the Boltzmann equation by incorporating the contribution of particle volume in collisions. The primary…

偏微分方程分析 · 数学 2025-12-02 Zhe Chen

For different models of the electron-phonon interaction, the asymptotic behaviour of the moments of the stationary homogeneous solution of the linear Boltzmann equation is determined in the limit of a high external field. For…

凝聚态物理 · 物理学 2015-06-25 C. Dalitz

The linearized Boltzmann collision operator has a central role in many important applications of the Boltzmann equation. Recently some important classical properties of the linearized collision operator for monatomic single species were…

偏微分方程分析 · 数学 2024-03-14 Niclas Bernhoff

The stationary Boltzmann equation for hard and soft forces in the context of a two component gas is considered in the slab when the molecular masses of the 2 component are different. An $L^{1}$ existence theorem is proved when one component…

偏微分方程分析 · 数学 2009-10-08 Stéphane Brull

We consider KdV-type equations with $C^1$ nonhomogeneous nonlinearities and small dispersion $\varepsilon$. The first result consists in the conclusion that, in the leading term with respect to $\varepsilon$, the solitary waves in this…

偏微分方程分析 · 数学 2015-12-01 Georgy Omel'yanov

We prove the existence and uniqueness of an equilibrium state with unit mass to the dissipative linear Boltzmann equation with hard--spheres collision kernel describing inelastic interactions of a gas particles with a fixed background. The…

统计力学 · 物理学 2009-11-10 Bertrand Lods , Giuseppe Toscani

Path-integral approach to the tight-binding polaron is extended to multiple optical phonon modes of arbitrary dispersion and polarization. The non-linear lattice effects are neglected. Only one electron band is considered. The…

强关联电子 · 物理学 2009-11-11 Pavel Kornilovitch

In the paper we study a measure version of the evolutionary nonlinear Boltzmann-type equation in which we admit a random number of collisions of particles. We consider first a stationary model and use two methods to find its fixed points:…

偏微分方程分析 · 数学 2022-05-31 H. Gacki , Ł. Stettner

In this paper, we give an explicit formula for the Futaki invariants of complete intersections. The result is new in the case where the variety is smooth or has orbifold singularities.

微分几何 · 数学 2007-05-23 Zhiqin Lu

Difference Boltzmann Equation is derived in a plane wavelets representation with account of two-particle correlations. It is shown that the set of plane wavelet orthonormal functions is complete. The set of ket vectors is used as the second…

数学物理 · 物理学 2012-02-03 Alexandr A. Klyukanov

We consider the spatially inhomogeneous quantum Boltzmann equation for bosons with a singular collision kernel, the weak-coupling limit of a large system of Bose-Einstein particles interacting through inverse power law. Global…

偏微分方程分析 · 数学 2022-10-18 Yu-Long Zhou

Scalar particles are a common prediction of many beyond the Standard Model theories. If they are light and cold enough, there is a possibility they may form Bose-Einstein condensates, which will then become gravitationally bound. These…

宇宙学与河外天体物理 · 物理学 2016-10-19 Eric Cotner

Taking into account the constraints imposed by the lattice symmetry, we calculate the phonon dispersion for graphene with interactions between the first, second, and third nearest neighbors in the framework of the Born--von Karman model.…

介观与纳米尺度物理 · 物理学 2009-11-13 L. A. Falkovsky

Simple form of Boltzmann equation will be proposed after introducing a three-dimensional closed Lie group to simplify its collision term.

数学物理 · 物理学 2011-08-12 Lang Xia