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相关论文: Quantum kinetic theories in degenerate plasmas

200 篇论文

We evaluate various analytical models for the electron-ion energy transfer and compare the results to data from molecular dynamics (MD) simulations. The models tested includes energy transfer via strong binary collisions, Landau-Spitzer…

等离子体物理 · 物理学 2014-03-05 J. Vorberger , D. O. Gericke

We report a fully kinetic, quantum study of Kinetic Electrostatic Electron Nonlinear (KEEN) waves, showing that quantum diffraction systematically erodes the classical trapping mechanism, narrow harmonic locking to the fundamental, and…

The tomographic invertable map of the Wigner function onto the positive probability distribution function is studied. Alternatives to the Schr\"odinger evolution equation and to the energy level equation written for the positive probability…

量子物理 · 物理学 2016-09-08 Vladimir I. Man'ko

To analyze the joint development of two-stream and filamentation kinetic instabilities in a plasma with a particle beam, a quasilinear approach has been developed that accounts for the integral nonlinear interaction of modes arising from…

等离子体物理 · 物理学 2025-04-29 A. A. Kuznetsov , Vl. V. Kocharovsky

We analyze quantal Brownian motion in $d$ dimensions using the unified model for diffusion localization and dissipation, and Feynman-Vernon formalism. At high temperatures the propagator possess a Markovian property and we can write down an…

凝聚态物理 · 物理学 2009-10-31 Doron Cohen

The weak turbulence model, also known as the quasilinear theory in plasma physics, has been a cornerstone in modeling resonant particle-wave interactions in plasmas. This reduced model stems from the Vlasov-Poisson/Maxwell system under the…

偏微分方程分析 · 数学 2024-11-14 Kun Huang , Irene M. Gamba

We present a generalization of Vlasov-Maxwell kinetic theory that accounts for intense electromagnetic fields. A strongly-radiating, possibly optically-thick plasma is decomposed into fragments, each comprising a charged particle together…

等离子体物理 · 物理学 2022-11-28 J. W. Burby , P. J. Morrison

We present a kinetic Clemmow-Mullaly-Allis (CMA) diagram by systematically analysing the kinetic effects on the wave propagation in a homogeneous thermal plasma. The differences between the cold and kinetic CMA diagrams are outlined. It is…

等离子体物理 · 物理学 2025-04-18 Zilong Li , Haotian Chen , Zhe Gao , Wei Chen

Classical Molecular Dynamics (MD) simulations for a one-component plasma (OCP) are presented. Quantum effects are included in the form of the Kelbg potential. Results for the dynamical structure factor are compared with the Vlasov and RPA…

等离子体物理 · 物理学 2009-11-06 V. Golubnychiy , M. Bonitz , D. Kremp , M. Schlanges

A three species one-dimensional kinetic model is presented for a spatially homogeneous weakly ionized plasma subjected to the action of a time varying electric field. Planar geometry is assumed, which means that the plasma dynamics evolves…

等离子体物理 · 物理学 2016-06-21 J. Gonzalez , J. M. Donoso , S. P. Tierno

Shielding effects in non-degenerate and degenerate plasmas are compared. A detailed derivation of the Wigner-Poisson system is provided for electrostatic quantum plasmas where relativistic, spin and collisional effects are not essential.…

等离子体物理 · 物理学 2012-06-07 Fernando Haas

An interaction of electromagnetic S-wave with thin flat metallic film is numerically studied for the quantum degenerate electron plasma. One considers the reflectance, transmittance and absorptance power coefficients. A contribution of…

等离子体物理 · 物理学 2017-09-08 A. A. Yushkanov , N. V. Zverev

Eulerian electrostatic kinetic simulations of unmagnetized plasmas (kinetic electrons and motionless protons) with high-frequency equilibrium perturbations have been employed to investigate the phase space free energy transfer across…

等离子体物理 · 物理学 2023-10-12 G. Celebre , S. Servidio , F. Valentini

The article contains a review and new results of some mathematical models relevant to the interpretation of quantum mechanics and emulating well-known quantum gauge theories, such as scalar electrodynamics (Klein-Gordon-Maxwell…

综合物理 · 物理学 2022-11-08 Andrey Akhmeteli

Wave-particle interaction (WPI) is one of the most fundamental processes in plasma physics in which one most prominent example is the Landau damping. Owing to its excellent energy-exchange mechanism, the WPI has gained increasing interest…

等离子体物理 · 物理学 2022-02-22 Amar P. Misra , Gert Brodin

Exchange effects play an important role in determining the equilibrium properties of dense matter systems, as well as for magnetic phenomena. There exists an extensive literature concerning, e.g., the effects of exchange interactions on the…

等离子体物理 · 物理学 2014-12-03 J. Zamanian , M. Marklund , G. Brodin

The Kramers problem for quantum fermi-gases with specular - diffuse boundary conditions of the kinetic theory is considered. On an example of Kramers problem the new generalised method of a source of the decision of the boundary problems…

数学物理 · 物理学 2012-02-14 P. V. Ivanisenko , A. V. Latyshev

We present a derivation of the dispersion relation for electrostatic oscillations (ESOs) in a zero temperature quantum plasma. In the latter, degenerate electrons are governed by the Wigner equation, while non-degenerate ions follow the…

等离子体物理 · 物理学 2009-11-25 Bengt Eliasson , Padma K. Shukla

A kinetic theory of the Bohm criterion is developed that is based on positive-exponent velocity moments of the plasma kinetic equation. This result is contrasted with the conventional kinetic Bohm criterion that is based on a v^{-1} moment…

等离子体物理 · 物理学 2015-06-12 S. D. Baalrud , C. C. Hegna

We formulate a method for incorporating quantum fluctuations into molecular- dynamics simulations of many-body systems, such as those employed for energetic nuclear collision processes. Based on Fermi's Golden Rule, we allow spontaneous…

核理论 · 物理学 2009-10-28 Akira Ohnishi , Jorgen Randrup