Results 1 to 10 of about 1,523 (40)

Collisionless distribution function for the relativistic force-free Harris sheet [PDF]

, 2011
A self-consistent collisionless distribution function for the relativistic analogue of the force-free Harris sheet is presented. This distribution function is the relativistic generalization of the distribution function for the non-relativistic ...
Neukirch, T., Stark, C. R.
core   +2 more sources

Role of reconnection in inertial kinetic-Alfven turbulence

, 2019
In a weakly collisional, low-electron-beta plasma, large-scale Alfv\'en turbulence transforms into inertial kinetic-Alfv\'en turbulence at scales smaller than the ion microscale (gyroscale or inertial scale).
Boldyrev, Stanislav, Loureiro, Nuno F.
core   +1 more source

Multiscale nature of the dissipation range in gyrokinetic simulations of Alfv\'enic turbulence

, 2015
Nonlinear energy transfer and dissipation in Alfv\'en wave turbulence are analyzed in the first gyrokinetic simulation spanning all scales from the tail of the MHD range to the electron gyroradius scale.
Hammett, G. W., Howes, G. G., Jenko, F., TenBarge, J. M., Told, D.   +4 more
core   +1 more source

Axially and spherically symmetric solitons in warm plasma

, 2011
We study the existence of stable axially and spherically symmetric plasma structures on the basis of the new nonlinear Schrodinger equation (NLSE) accounting for nonlocal electron nonlinearities. The numerical solutions of NLSE having the form of spatial
Chen, Dvornikov, Haas, Infeld, Jackson, Kuznetsov, Litvak, MAXIM DVORNIKOV, Rakov, Rakov, Skupin, Stenhoff, Stenhoff, Stenhoff, Stenhoff, Sulem, Sulem, Zakharov, Škorić   +18 more
core   +1 more source

Collisionless Reconnection in the Large Guide Field Regime: Gyrokinetic Versus Particle-in-Cell Simulations

, 2014
Results of the first validation of large guide field, $B_g / \delta B_0 \gg 1$, gyrokinetic simulations of magnetic reconnection at a fusion and solar corona relevant $\beta_i = 0.01$ and solar wind relevant $\beta_i = 1$ are presented, where $\delta B_0$
Daughton, W., Dorland, W., Howes, G. G., Karimabadi, H., TenBarge, J. M.   +4 more
core   +1 more source

Probing electron acceleration and X-ray emission in laser-plasma accelerator

, 2013
While laser-plasma accelerators have demonstrated a strong potential in the acceleration of electrons up to giga-electronvolt energies, few experimental tools for studying the acceleration physics have been developed.
Bloom, M. S., Brijesh, P., Corde, S., Kneip, S., Lambert, G., Malka, V., Mangles, S. P. D., Phuoc, K. Ta, Thaury, C.   +8 more
core   +3 more sources

Transition from ion-coupled to electron-only reconnection: Basic physics and implications for plasma turbulence

, 2019
Using kinetic particle-in-cell (PIC) simulations, we simulate reconnection conditions appropriate for the magnetosheath and solar wind, i.e., plasma beta (ratio of gas pressure to magnetic pressure) greater than 1 and low magnetic shear (strong guide ...
A. Chasapis, Bieber J. W., Birn J., C. C. Haggerty, Dorelli J. C., Eriksson E., Haggerty C. C., J. F. Drake, J. M. TenBarge, K. G. Klein, Karimabadi H., M. A. Shay, M. Swisdak, Mandt M. E., Matthaeus W. H., P. A. Cassak, P. Sharma Pyakurel, Phan T. D., Phan T. D., Priest E. R., Pritchett P. L., Pyakurel P. S., Shay M. A., Shay M. A., Shay M. A., Shay M. A., Shay M. A., Sonnerup B. U. Ö., Swisdak M., T. D. Phan, T. N. Parashar, Terasawa T., Vörös Z., W. H. Matthaeus, Yordanova E., Zeiler A., Øieroset M.   +36 more
core   +1 more source

Bi-Directional Energy Cascades and the Origin of Kinetic Alfv\'enic and Whistler Turbulence in the Solar Wind [PDF]

, 2014
The observed sub-proton scale turbulence spectrum in the solar wind raises the question of how that turbulence originates. Observations of keV energetic electrons during solar quite-time suggest them as possible source of free energy to drive the ...
Che, H., Goldstein, M. L., Viñas, A. F.
core   +3 more sources

Quantum exchange interaction of spherically symmetric plasmoids

, 2012
We study nano-sized spherically symmetric plasma structures which are radial nonlinear oscillations of electrons in plasma. The effective interaction of these plasmoids via quantum exchange forces between ions is described.
Anderson, Bergström, Bychkov, Clough, Dvornikov, Dvornikov, Gilman, Haas, Hudson, Ito, Kittel, Kulakov, Landau, Landau, Maxim Dvornikov, Mesenyashin, Mitchell, Neugebauer, Nikitin, Oreshko, Shabanov, Shmatov, Shukla, Stakhanov, Tennakone, Versteeg, Wigner, Škorić   +27 more
core   +1 more source

Analysis of fast turbulent reconnection with self-consistent determination of turbulence timescale

, 2019
We present results of Reynolds-averaged turbulence model simulation on the problem of magnetic reconnection. In the model, in addition to the mean density, momentum, magnetic field, and energy equations, the evolution equations of the turbulent cross ...
Batchelor G. K., Birn J., F. Widmer, J. Büchner, Krause F., Launder B. E., Lesieur M., N. Yokoi, Parker E. N., Petschek H. E., Schindler K., Terasawa T., Yokoi N.   +12 more
core   +1 more source