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The self-organization in a multi-ion plasma composed of electrons and two species of positively charged ions is investigated. It is shown that when canonical vorticities and velocities of all the plasma fluids are aligned, the magnetic…

Plasma Physics · Physics 2024-07-15 Shafa Ullah , Usman Shazad , M. Iqbal

The self-organization of a magnetized multi-ion plasma, composed of inertialess electrons and inertial H+, He+, and O+ ions, leads to the formation of quadruple Beltrami (QB) field structures. The QB self-organized state is a linear…

Plasma Physics · Physics 2025-07-02 Usman Shazad , M. Iqbal

A thermally relativistic electron-positron-ion (EPI) plasma self-organizes into a quadruple Beltrami (QB) field. The QB field, which is the combination of four Beltrami fields, is described by four scale parameters. These scale parameters…

Plasma Physics · Physics 2024-07-15 Usman Shazad , M. Iqbal

A quadruple Beltrami (QB) equilibrium state for a four-component plasma that consists of inertial electrons, positrons, lighter positive (H+) ions and heavier negative ions (O-2) is derived and investigated. The QB relaxed state is a linear…

Plasma Physics · Physics 2025-07-03 Farhat Saleem , M. Iqbal , Usman Shazad

The relaxed state of a magnetized relativistic hot plasma composed of inertial electrons and positrons having different relativistic temperatures and a fraction of static positive ions is studied. From the steady-state solutions of vortex…

Plasma Physics · Physics 2025-07-02 Usman Shazad , M. Iqbal

The relaxation of a relativistic hot electron-positron plasma with a small fraction of cold electrons and ion species is investigated, and a quadruple Beltrami (QB) relaxed state is derived. The QB state is a non-force-free state that is a…

Plasma Physics · Physics 2025-07-02 Usman Shazad , M. Iqbal

The properties of non-equilibrium magnetized plasmas confined in planar geometry are studied on the basis of the first principle microscopic Langevin dynamics computer simulations. The non-equilibrium state of plasmas is maintained due to…

Plasma Physics · Physics 2015-05-18 Oleksiy Bystrenko , Tatyana Bystrenko

Self-organization in an unmagnetized collisionless plasma (in this paper) refers to formation of transient coherent structures such as collective oscillations (electrostatic waves) or magnetic fields resulting from so-called kinetic effects…

Plasma Physics · Physics 2023-11-29 Chaojie Zhang , Chen-Kang Huang , Chan Joshi

Instead of the homogeneous ordered particle distributions characteristic to equilibrium systems a self-organizing polydomain structure is found to be stable at low temperatures in a square lattice-gas model with repulsive nearest neighbor…

Condensed Matter · Physics 2009-10-28 Gyorgy Szabo , Attila Szolnoki , Tibor Antal , Istvan Borsos

Compact plasmas, that exist near black-hole candidates and in gamma ray burst sources, commonly exhibit self-organized non-linear behavior. A model that simulates the non-linear behavior of compact radiative plasmas is constructed directly…

Astrophysics · Physics 2009-10-30 Ran Sivron

Staircase formation and layering is studied in simplified, potential vorticity conserving models of plasmas and geophysical fluids, by investigating turbulent self-organisation and nonlinear saturation with different mechanisms of free…

Plasma Physics · Physics 2025-11-14 P. L. Guillon , G. Dif-Pradalier , Y. Sarazin , D. W. Hughes , Ö. D. Gürcan

Interaction of an intense electromagnetic (EM) beam with hot relativistic plasma is investigated. It is shown that the thermal pressure brings about a fundamental change in the dynamics - localized, high amplitude, EM field structures, not…

Plasma Physics · Physics 2009-11-07 V. I. Berezhiani , S. M. Mahajan , Z. Yoshida , M. Ohhashi

The formation of vortex structures at reflection of electron beam from the double layer of the Jupiter ionosphere is investigated in this paper. And also the influence of these vortex structures on the formation of dense upward electron…

Earth and Planetary Astrophysics · Physics 2021-02-15 V. I. Maslov , O. K. Cheremnykh , A. P. Fomina , R. I. Kholodov , O. P. Novak , R. T. Ovsiannikov

We perform full-MHD simulations on various initially helical configurations and show that they reconfigure into a state where the magnetic field lines span nested toroidal surfaces. This relaxed configuration is not a Taylor state, as is…

Plasma Physics · Physics 2015-09-23 C. B. Smiet , S. Candelaresi , A. Thompson , J. Swearngin , J. W. Dalhuizen , D. Bouwmeester

The vortex dynamics in a low temperature superconductor deposited on top of a rectangular array of micrometer size permalloy triangles is investigated experimentally. The rectangular unit cell is such that neighboring triangles physically…

Superconductivity · Physics 2009-11-13 J. Van de Vondel , A. V. Silhanek , V. Metlushko , P. Vavassori , B. Ilic , V. V. Moshchalkov

Transitions from turbulence to order are studied experimentally in thin fluid layers and magnetically confined toroidal plasma. It is shown that turbulence self-organizes through the mechanism of spectral condensation. The spectral…

Plasma Physics · Physics 2009-11-10 M. G. Shats , H. Xia , H. Punzmann

Thermal field soliton self-organization arising due to absorption of background atoms vibrations is observed in numerical experiment in nonlinear chain with Lennard-Jones potential at high temperature. At some stage intensive…

Pattern Formation and Solitons · Physics 2007-05-23 Leonid S. Metlov

We consider both theoretically and experimentally self-organization process of quasi-equilibrium steady-state condensation of sputtered substance in accumulative ion-plasma devices. The self-organization effect is shown to be caused by…

Statistical Mechanics · Physics 2015-05-14 V. I. Perekrestov , A. I. Olemskoi , Yu. A. Kosminska , A. A. Mokrenko

Electric field control of magnetic structures, particularly topological defects in magnetoelectric materials, draws a great attention in recent years, which has led to experimental success in creation and manipulation by electric field of…

Strongly Correlated Electrons · Physics 2017-05-24 P. I. Karpov , S. I. Mukhin

Polariton condensates have proved to be model systems to investigate topological defects, as they allow for direct and non-destructive imaging of the condensate complex order parameter. The fundamental topological excitations of such…

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