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The efficiency of energy conversion during magnetic reconnection is related to the reconnection rate. While the stable reconnection rate has been studied extensively, its growth between the time of reconnection onset and the peak…

Plasma Physics · Physics 2022-08-19 D. S. Payne , R. B. Torbert , K. Germaschewski , T. G. Forbes , J. R. Shuster

Dynamics of the magnetospheric plasma configuration intrinsically features intermittent slow and fast phases. The fast transition is a nonlinear process, loss of equilibrium which ends up the slow quasi-static evolution. The process is…

Plasma Physics · Physics 2013-02-13 Alexey Kropotkin

We present the results of 3-dimensional kinetic simulations and theoretical studies on the formation and evolution of the current sheet in a collisionless plasma during magnetic field annihilation in the ultra-relativistic limit.…

Plasma Physics · Physics 2019-12-20 Y. J. Gu , F. Pegoraro , P. V. Sasorov , D. Golovin , A. Yogo , G. Korn , S. V. Bulanov

The interaction of a high-frequency laser with plasma in the presence of an inhomogeneous external magnetic field has been studied here with the help of Particle-In-Cell simulation. It has been shown that laser enters inside the plasma as…

Plasma Physics · Physics 2022-06-01 Srimanta Maity , Laxman Prasad Goswami , Ayushi Vashistha , Devshree Mandal , Amita Das

The manuscript deals with electron acceleration by a laser pulse in a plasma with a static uniform magnetic field $B_*$. The laser pulse propagates perpendicular to the magnetic field lines with the polarization chosen such that…

Plasma Physics · Physics 2020-04-08 A. Arefiev , Z. Gong , A. P. L. Robinson

A supersonic flow of magnetized plasma is produced by the application of a 1 MA-peak, 500 ns current pulse to a cylindrical arrangement of parallel wires, known as an inverse wire array. The plasma flow is produced by the JxB acceleration…

Expressions of polarization and magnetization in magnetically confined plasmas are derived, which include full expansions in the gyroradius to treat effects of both equilibrium and microscopic electromagnetic turbulence. Using the obtained…

Plasma Physics · Physics 2022-06-01 H. Sugama , S. Matsuoka , M. Nunami

The classical electromagnetic interaction of a point charge and a magnet is discussed by first calculating the interaction of point charge with a simple model magnetic moment and then suggesting a multiparticle limit. The Darwin Lagrangian…

Classical Physics · Physics 2010-05-17 Timothy H. Boyer

The realization of negative refraction in atomic gases requires a strong magnetic response of the atoms. Current proposals for such systems achieve an enhancement of the magnetic response by a suitable laser field configuration, but still…

Quantum Physics · Physics 2009-11-13 B. Jungnitsch , J. Evers

Magnetic flux ropes are commonly observed throughout the heliosphere, and recent studies suggest that interacting flux ropes are associated with some energetic particle events. In this work, we carry out 2D particle-in-cell (PIC)…

Solar and Stellar Astrophysics · Physics 2018-10-31 Senbei Du , Fan Guo , Gary P. Zank , Xiaocan Li , Adam Stanier

The interaction between a wide ultrarelativistic fully-ionized plasma beam and a magnetic barrier is studied numerically. It is assumed that the plasma beam is initially homogeneous and impacts with the Lorentz factor $\Gamma_0\gg 1$ on the…

Astrophysics · Physics 2015-06-24 V. V. Usov , M. V. Smolsky

Relativistic magnetic reconnection is a key process for accelerating charged particles and producing high-energy radiation. We study this process using relativistic resistive magnetohydrodynamics simulations. Starting with Harris sheet…

Plasma Physics · Physics 2025-06-23 Harihar Pradhan , Kirit D Makwana , Bart Ripperda

In magnetized capacitively coupled radio-frequency discharges operated at low pressure the influence of the magnetic flux density on discharge properties has been studied recently both by experimental investigations and in simulations. It…

Expanding laser plasmas, produced by high energy laser radiation, possess both high thermal and magnetic field energy density. Characterization of such plasma is challenging but needed for understanding of its physical behaviour. Among all…

We develop a first-principles model for the relativistic magnetic reconnection rate in strongly magnetized pair plasmas. By considering the energy budget and required current density near the x-line, we analytically show that in the…

High Energy Astrophysical Phenomena · Physics 2023-01-31 Matthew Goodbred , Yi-Hsin Liu

We study ferromagnetism in a repulsively interacting two-component Fermi gas in a harmonic trap. Within a local density approximation, the two components phase-separate beyond a critical interaction strength, with one species having a…

Quantum Gases · Physics 2013-05-29 L. J. LeBlanc , J. H. Thywissen , A. A. Burkov , A. Paramekanti

Magnetic reconnection is a pivotal mechanisms in the energization and heating of cosmic plasmas, yet the exact process of energy transfer during these events remain elusive. Traditional models, which focus on acoustic and…

Solar and Stellar Astrophysics · Physics 2025-04-29 Anil Raghav , Ajay Kumar , Mariyam Karari , Shubham Kadam , Kalpesh Ghag , Kishor Kumbhar , Omkar Dhamane

The behaviour of a relativistic electron-positron plasma in the pulsar magnetosphere is investigated. The equation of the motion of the magnetospheric plasma is discussed, from which it follows that, if the plasma particle radial velocity…

Astrophysics · Physics 2009-10-30 T. A. Kahniashvili , G. Z. Machabeli , I. S. Nanobashvili

The physics of plasmas containing positive and negative ions is discussed with special attention to the recently produced pair-ion plasma containing ions of equal mass and opposite charge. The effects of the density gradient in the…

Plasma Physics · Physics 2009-11-13 J. Vranjes , D. Petrovic , B. P. Pandey , S. Poedts

During magnetic reconnection in collisionless space plasma, the electron fluid decouples from the magnetic field within narrow current layers, and theoretical models for this process can be distinguished in terms of their predicted current…