Zobrazeno 1 - 10
of 358
pro vyhledávání: '"82D10"'
Autor:
Rosenzweig, Matthew, Serfaty, Sylvia
We study so-called supercritical mean-field limits of systems of trapped particles moving according to Newton's second law with either Coulomb/super-Coulomb or regular interactions, from which we derive a $\mathsf{d}$-dimensional generalization of th
Externí odkaz:
http://arxiv.org/abs/2408.14642
We propose ParaPIF, a parareal based time parallelization scheme for the particle-in-Fourier (PIF) discretization of the Vlasov-Poisson system used in kinetic plasma simulations. Our coarse propagators are based on the coarsening of the numerical dis
Externí odkaz:
http://arxiv.org/abs/2407.00485
We present a simple model in dimension $d\geq 2$ for slowing particles in random media, where point particles move in straight lines among and inside spherical identical obstacles with Poisson distributed centres. When crossing an obstacle, a particl
Externí odkaz:
http://arxiv.org/abs/2406.05895
In this article, we consider Vlasov-type equations describing the evolution of single-species type plasmas, such as those composed of electrons (Vlasov-Poisson) or ions (screened Vlasov-Poisson/Vlasov-Poisson with massless electrons). We solve the fi
Externí odkaz:
http://arxiv.org/abs/2405.10182
We are concerned with Grad-Shafranov type equations, describing in dimension $N=2$ the equilibrium configurations of a plasma in a Tokamak. We obtain a sharp superlinear generalization of the result of Temam (1977) about the linear case, implying the
Externí odkaz:
http://arxiv.org/abs/2405.03203
Autor:
Vasko, I. Y., Mozer, F. S., Bowen, T., Verniero, J., An, X., Artemyev, A. V., Bonnell, J. W., Halekas, J., Kuzichev, I. V.
Parker Solar Probe measurements have recently shown that coherent fast magnetosonic and Alfv\'{e}n ion-cyclotron waves are abundant in the solar wind and can be accompanied by higher-frequency electrostatic fluctuations. In this letter we reveal the
Externí odkaz:
http://arxiv.org/abs/2404.16121
Autor:
Golding, William, Loher, Amélie
We consider the homogeneous Landau equation with Coulomb potential and general initial data $f_{in} \in L^p$, where $p$ is arbitrarily close to $3/2$. We show the local-in-time existence and uniqueness of smooth solutions for such initial data. The c
Externí odkaz:
http://arxiv.org/abs/2308.10288
Autor:
Wu, Jingpeng
In this article, we investigate the gyrokinetic limit for the two-dimensional Vlasov-Poisson system with point charges. We show that the solution converges to a measure-valued solution of the Euler equation with a defect measure, which extends the re
Externí odkaz:
http://arxiv.org/abs/2307.13442
Autor:
Fiore, Gaetano
We propose a preliminary analytical procedure in 4 steps (based on an improved fully relativistic plane hydrodynamic model) to tailor the initial density of a cold diluted plasma to the laser pulse profile so as to control wave-breaking (WB) of the p
Externí odkaz:
http://arxiv.org/abs/2305.04580
We analytically study the impact of a short laser pulse onto an inhomogeneous cold diluted plasma at rest, in particular: the duration of the hydrodynamic regime; the formation and the features of plasma waves (PWs); their wave-breakings (WBs); the m
Externí odkaz:
http://arxiv.org/abs/2303.03322