English
Related papers

Related papers: Interaction between electrostatic collisionless sh…

200 papers

A magnetic field was recently shown to enhance field-parallel heat conduction in a strongly correlated plasma whereas cross-field conduction is reduced. Here we show that in such plasmas, the magnetic field has the additional effect of…

Plasma Physics · Physics 2017-01-25 T. Ott , M. Bonitz , P. Hartmann , Z. Donkó

We study in a fully kinetic framework the generation of seed magnetic fields through the Weibel instability driven in an initially unmagnetized plasma by a large-scale shear force. We develop an analytical model that describes the…

Plasma Physics · Physics 2021-10-05 Muni Zhou , Vladimir Zhdankin , Matthew W. Kunz , Nuno F. Loureiro , Dmitri A. Uzdensky

Ultracold collisions of polar OH molecules are considered in the presence of an electrostatic field. The field exerts a strong influence on both elastic and state-changing inelastic collision rate constants, leading to clear experimental…

Atomic Physics · Physics 2009-11-07 Alexandr V. Avdeenkov , John L. Bohn

Colliding collisionless shocks appear in a great variety of astrophysical phenomena and are thought to be possible sources of particle acceleration in the Universe. To investigate the detailed dynamics of this phenomenon, we have performed…

How electrons get accelerated to relativistic energies in a high-Mach-number quasi-perpendicular shock is presented by means of ab initio particle-in-cell simulations in three dimensions. We found that coherent electrostatic Buneman waves…

High Energy Astrophysical Phenomena · Physics 2017-09-13 Yosuke Matsumoto , Takanobu Amano , Tsunehiko N. Kato , Masahiro Hoshino

The filamentation (Weibel) instability plays a key role in the formation of collisionless shocks which are thought to produce Gamma-Ray-Bursts and High-Energy-Cosmic-Rays in astrophysical environments. While it has been known for long that…

Plasma Physics · Physics 2015-06-18 Antoine Bret

We study the thermodynamics of degenerate electron and charged vector boson gases in very intense magnetic fields. In degenerate conditions of the electron gas, the pressure transverse to the magnetic field $B$ may vanish, leading to a…

High Energy Physics - Phenomenology · Physics 2009-10-31 M. Chaichian , S. S. Masood , C. Montonen , A. Perez Martinez , H. Perez Rojas

We demonstrate that a non-vanishing interaction force exists between pairs of induced dipoles in random, statistically stationary electromagnetic field. This new type of optical binding force leads to long-range interaction between dipolar…

Optics · Physics 2015-06-15 Sergey Sukhov , Kyle M. Douglass , Aristide Dogariu

A new quasi-neutral model describing the Weibel instability of a high-current relativistic beam propagating through a resistive plasma is developed. It treats beam electrons as kinetic particles, and ambient plasma as a non-relativistic…

Plasma Physics · Physics 2009-11-13 Anupam Karmakar , Naveen Kumar , Gennady Shvets , Oleg Polomarov , Alexander Pukhov

Collisionless shocks are common features in space and astrophysical systems where supersonic plasma flows interact, such as in the solar wind, the heliopause, and supernova remnants. Recent experimental capabilities and diagnostics allow…

A one-dimensional particle-in-cell (PIC) simulation tracks a fast magnetosonic shock over time scales comparable to an inverse ion gyrofrequency. The magnetic pressure is comparable to the thermal pressure upstream. The shock propagates…

Plasma Physics · Physics 2018-08-01 Q. Moreno , M. E. Dieckmann , X. Ribeyre , E. d'Humières

Magnetic reconnection occurs when two plasmas having co-planar but anti-parallel magnetic fields meet. At the contact point, the field is locally annihilated and the magnetic energy can be released into the surrounding plasma. Theory and…

Violent gravitational interactions can change the morphologies of galaxies and, by means of merging, transform them into elliptical galaxies. We aim to investigate how they affect the evolution of galactic magnetic fields. We selected 16…

Cosmology and Nongalactic Astrophysics · Physics 2011-09-23 Robert T. Drzazga , Krzysztof T. Chyzy , Wojciech Jurusik , Krzysztof Wiorkiewicz

We observe shift in the zero magnetic field resonance as the handedness of resonantly interacting circularly polarized light is changed. The characteristic of the shift resembles with the Zeeman light shift that arises due to interaction of…

Atomic Physics · Physics 2018-01-22 Swarupananda Pradhan

Large-scale shocks formed by clustered feedback of young OB stars are considered an important source of mechanical energy for the ISM and a trigger of molecular cloud formation. Their interaction sites are locations where kinetic energy and…

Astrophysics of Galaxies · Physics 2017-03-08 Evangelia Ntormousi , Joanne R. Dawson , Patrick Hennebelle , Katharina Fierlinger

We present results from two-dimensional numerical simulations of the interactions between magnetized shocks and radiative clouds. Our primary goal is to characterize the dynamical evolution of the shocked clouds. We perform runs in both the…

Astrophysics · Physics 2009-11-10 P. Chris Fragile , Peter Anninos , Kyle Gustafson , Stephen D. Murray

We consider cold collisions of OH molecules in the $^2\Pi_{3/2}$ grounds state, under the influnce of a magnetic field. We find that modest fields of several thousand gauss can act to suppress inelastic collisions of weak-field seeking…

Atomic Physics · Physics 2009-11-10 Christopher Ticknor , John L. Bohn

Using lattice techniques we investigate the generation of long range cosmological magnetic fields during a cold electroweak transition. We will show how magnetic fields arise, during bubble collisions, in the form of magnetic strings. We…

High Energy Physics - Lattice · Physics 2009-04-14 A. Diaz-Gil , J. Garcia-Bellido , M. Garcia Perez , A. Gonzalez-Arroyo

Ultraperipheral heavy-ion collisions (UPCs) offer unique opportunities to study processes under strong electromagnetic fields. In these collisions, highly charged fast-moving ions carry strong electromagnetic fields that can be effectively…

Nuclear Theory · Physics 2024-06-21 Jie Zhao , Jinhui Chen , Xu-Guang Huang , Yu-Gang Ma

Momentum transfer due to electron-electron interaction (Coulomb drag) between two quantum wells, separated by a distance $d$, in the presence of a perpendicular magnetic field, is studied at low temperatures. We find besides the well known…

Condensed Matter · Physics 2015-06-25 M. W. Wu , H. L. Cui , N. J. M. Horing
‹ Prev 1 8 9 10 Next ›