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相关论文: Holographic Schwinger effect with a moving D3-bran…

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We use holography to analyze the evolution of an ensemble of jets, with an initial probability distribution for their energy and opening angle as in proton-proton (pp) collisions, as they propagate through an expanding cooling droplet of…

核理论 · 物理学 2016-06-02 Krishna Rajagopal , Andrey V. Sadofyev , Wilke van der Schee

We study the effects of the temperature and of a magnetic field in the setup of an intersection of D3/D7 branes, where a large number of D7 branes is smeared in the transverse directions to allow for a perturbative solution in a…

高能物理 - 理论 · 物理学 2015-06-05 Martin Ammon , Veselin G. Filev , Javier Tarrio , Dimitrios Zoakos

Astrophysical plasmas are often subject to both rotation and large-scale background magnetic fields. Individually, each is known to two-dimensionalize the flow in the perpendicular plane. In realistic flows, both of these effects are…

流体动力学 · 物理学 2022-01-26 Santiago J. Benavides , Keaton J. Burns , Basile Gallet , James Y-K. Cho , Glenn R. Flierl

The influence of plasma on different effects of gravitational lensing is reviewed. Using the Hamiltonian approach for geometrical optics in a medium in the presence of gravity, an exact formula for the photon deflection angle by a black…

广义相对论与量子宇宙学 · 物理学 2015-07-31 G. S. Bisnovatyi-Kogan , O. Yu. Tsupko

We have carried out a 3D ideal-MHD (Magnetohydrodynamic) simulation to study the evolution of laser generated plasma plume in a moderate external magnetic field (0.13 T) oriented perpendicular to the flow direction of the plasma plume. The…

等离子体物理 · 物理学 2021-10-27 Bhavesh G. Patel , Narayan Behera , R. K. Singh , Ajai Kumar , Amita Das

Magnetic reconnection has long been known to be the most important mechanism not only for mixing the plasmas by changing the magnetic field topology but also for releasing the magnetic field energy into the plasma kinetic energy. During…

高能天体物理现象 · 物理学 2024-04-25 Masahiro Hoshino

In this paper we investigate the transport of energetic particles in turbulent plasmas. A numerical approach is used to simulate the effect of the background plasma on the motion of energetic protons. The background plasma is in a…

高能天体物理现象 · 物理学 2015-06-04 M. Wisniewski , F. Spanier , R. Kissmann

The possible existence of short-range forces between unpolarized and polarized spin-1/2 particles has attracted the attention of physicists for decades. These forces are predicted in various theories and provide a possible new source for…

We have investigated the influence of a velocity shear surface on the linear and non-linear development of the CD kink instability of force-free helical magnetic equilibria in 3D. In this study we follow the temporal development within a…

高能天体物理现象 · 物理学 2015-05-27 Yosuke Mizuno , Philip E. Hardee , Ken-Ichi Nishikawa

Analyzing paradoxes is interesting and instructive. Sometimes the analysis leads to non-trivial results. This methodological note sets out a paradox arising in the theory of propagation of electromagnetic waves in moving plasmas. The…

地球物理 · 物理学 2021-01-28 A. V. Guglielmi , B. I. Klain , A. S. Potapov

The properties of electrostatic transverse shear waves propagating in a strongly coupled dusty plasma with an equilibrium density gradient are examined using the generalized hydrodynamic equation. In the usual kinetic limit, the resulting…

等离子体物理 · 物理学 2015-06-17 M. S Janaki , D. Banerjee , N. Chakrabarti

Longitudinal and transverse behavior of magnetic field of relativistic nonlinear three-dimensional plasma wave is investigated. It is shown that the magnetic field of the wave is different from zero and performs higher frequency…

等离子体物理 · 物理学 2009-11-06 A. G. Khachatryan

The process of particle acceleration by left-hand, circularly polarised inertial Alfven waves (IAW) in a transversely inhomogeneous plasma is studied using 3D particle-in-cell simulation. A cylindrical tube with, transverse to the…

太阳与恒星天体物理 · 物理学 2015-03-13 D. Tsiklauri

Membrane nucleation, a higher dimensional analog of the Schwinger effect, is a useful toy model for vacuum decay. While a non-perturbative effect, the computation of nucleation rates has only been accomplished at weak coupling in the field…

高能物理 - 理论 · 物理学 2023-01-18 Maite Arcos , Willy Fischler , Juan F. Pedraza , Andrew Svesko

Magnetic fusion devices operate at regimes characterized by extremely high temperatures and low densities, for which the charged particles motion is well described by classical mechanics. This is not true, however, for solid-state metallic…

等离子体物理 · 物理学 2015-06-23 Giovanni Manfredi , Jérôme Hurst

Recent advancements in low-frequency short-pulse $CO_2$ lasers and the production of strong magnetic fields have made experimental studies on laser interactions with magnetized plasma a near-future possibility. Therefore, theoretical and…

等离子体物理 · 物理学 2023-11-22 Laxman Prasad Goswami , Amita Das , Anuj Vijay

The propagation speed of a circumstellar pattern revealed in the plane of the sky is often assumed to represent the expansion speed of the wind matter ejected from a post-main-sequence star at the center. We point out that the often-adopted…

太阳与恒星天体物理 · 物理学 2023-08-31 Hyosun Kim

Stochastic acceleration of electrons and protons by waves propagating parallel to the large scale magnetic fields of magnetized plasmas is studied with emphasis on the feasibility of accelerating particles from a thermal background to…

天体物理学 · 物理学 2016-08-16 Vahé Petrosian , Siming Liu

We consider a holographic model of strongly interacting plasma with a gravitational anomaly. In this model, we compute parity-odd responses of the system at finite temperature and chemical potential to external electromagnetic and…

高能物理 - 理论 · 物理学 2021-08-18 Alexander Avdoshkin , Rustem Sharipov

The collisionless interaction of an expanding high-energy plasma cloud with a magnetized background plasma in the presence of a dipole magnetic field is examined in the framework of a 2D3V hybrid (kinetic ions and massless fluid electrons)…

等离子体物理 · 物理学 2015-05-13 H. B. Nersisyan , D. A. Osipyan