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相关论文: Relativistic kinetic equation for dense gases from…

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We derive the Boltzmann equation and the collision kernel for massive spin-1/2 particles, using the Wigner-function formalism and employing an expansion in powers of $\hbar$. The phase space is enlarged to include a variable related to the…

核理论 · 物理学 2021-08-04 Nora Weickgenannt , Enrico Speranza , Xin-li Sheng , Qun Wang , Dirk H. Rischke

This paper provides the first rigorous derivation of a binary-ternary Boltzmann equation describing the kinetic properties of a dense hard-spheres gas, where particles undergo either binary or ternary instantaneous interactions, while…

偏微分方程分析 · 数学 2020-07-02 Ioakeim Ampatzoglou , Natasa Pavlovic

We derive self-consistent constraint conditions for collision terms in quantum kinetic theory using the Wigner function formalism. We present specific solutions for these collision terms that align with the constraints. we develop quantum…

高能物理 - 唯象学 · 物理学 2024-10-24 Shi-Yuan Wu , Jian-Hua Gao

We review the non-relativistic Green's-function approach to the kinetic equations for Fermi liquids far from equilibrium. The emphasis is on the consistent treatment of the off-shell motion between collisions and on the non-instant and…

核理论 · 物理学 2017-03-08 P. Lipavsky , K. Morawetz , V. Spicka

The kinetic theory of gases, including Granular Gases, is based on the Boltzmann equation. Many properties of the gas, from the characteristics of the velocity distribution function to the transport coefficients may be expressed in terms of…

统计力学 · 物理学 2015-06-24 Thorsten Poeschel , Nikolai V. Brilliantov

With the help of a semi-classical kinetic theory, a new collision kernel is proposed, which simultaneously conserves the energy-momentum tensor and the spin tensor of a relativistic fluid of spin-1/2 particles irrespective of the frame and…

高能物理 - 唯象学 · 物理学 2025-03-12 Samapan Bhadury

We propose a general method to derive kinetic equations for dense soliton gases in physical systems described by integrable nonlinear wave equations. The kinetic equation describes evolution of the spectral distribution function of solitons…

可精确求解与可积系统 · 物理学 2009-11-11 G. A. El , A. M. Kamchatnov

We propose a new model for the description of a gravitating multi particle system, viewed as a kinetic gas. The properties of the, colliding or non-colliding, particles are encoded into a so called one-particle distribution function, which…

广义相对论与量子宇宙学 · 物理学 2020-02-11 Manuel Hohmann , Christian Pfeifer , Nicoleta Voicu

As is well-known, for plasmas of high density and modest temperature, the classical kinetic theory needs to be extended. Such extensions can be based on the Schr\"odinger Hamiltonian, applying a Wigner transform of the density matrix, in…

等离子体物理 · 物理学 2021-11-02 Gert Brodin , Jens Zamanian

The Vlasov type quantum kinetic equation for deconfined quarks in strong quasi-classical gluon field is derived in the covariant single-time formalism. The equations system for the Wigner function components is obtained as a result of…

高能物理 - 唯象学 · 物理学 2007-05-23 A. V. Prozorkevich , S. A. Smolyansky , S. V. Ilyin

We present the complete first order relativistic quantum kinetic theory with spin for massive fermions derived from the Wigner function formalism in a concise form that shows explicitly how the 32 Wigner equations reduce to 4 independent…

高能物理 - 唯象学 · 物理学 2019-10-02 Jian-Hua Gao , Zuo-Tang Liang

The periodic Lorentz gas describes an ensemble of non-interacting point particles in a periodic array of spherical scatterers. We have recently shown that, in the limit of small scatterer density (Boltzmann-Grad limit), the macroscopic…

数学物理 · 物理学 2008-05-17 Jens Marklof , Andreas Strombergsson

We study the three-dimensional transport theory of massive spin-1/2 fermions resulting from the vorticity dependent quantum kinetic equation. This quantum kinetic equation has been introduced to take account of noninertial properties of…

高能物理 - 理论 · 物理学 2022-09-02 Ö. F. Dayi , S. E. Gürleyen

The nonextensive kinetic theory for degenerate quantum gases is discussed in the general relativistic framework. By incorporating nonadditive modifications in the collisional term of the relativistic Boltzmann equation and entropy current,…

广义相对论与量子宇宙学 · 物理学 2017-10-25 A. P. Santos , R. Silva , J. S. Alcaniz , J. A. S. Lima

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

We consider the quantum kinetic-theory description for interacting massive spin-half fermions using the Wigner function formalism. We derive a general kinetic theory description assuming that the spin effects appear at the classical and…

高能物理 - 理论 · 物理学 2023-09-11 Arpan Das , Wojciech Florkowski , Avdhesh Kumar , Radoslaw Ryblewski , Rajeev Singh

The local balance equations for the density, momentum, and energy of a dilute gas of elastic or inelastic hard spheres, strongly confined between two parallel hard plates are obtained. The starting point is a Boltzmann-like kinetic…

统计力学 · 物理学 2020-04-22 J. Javier Brey , P. Maynar , M. I. García de Soria

The paper presents a solution to the Boltzmann kinetic equation based on the construction of its discrete conservative model. Discrete analogue of the collision integral is presented as a contraction of a tensor, which is independent from…

统计力学 · 物理学 2017-07-04 George Arabuli

A kinetic equation for a dilute gas of hard spheres confined between two parallel plates separated a distance smaller than two particle dimeters is derived. It is a Boltzmann-like equation, which incorporates the effect of the confinement…

统计力学 · 物理学 2016-11-23 J. Javier Brey , P. Maynar , M. I. García de Soria

We present a derivation of quantum kinetic theory for massive spin-1 particles from the Wigner-function formalism up to first order in an $\hbar$-expansion, including a general interaction term. Both local and nonlocal contributions are…

核理论 · 物理学 2023-11-21 David Wagner , Nora Weickgenannt , Enrico Speranza
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