Zobrazeno 1 - 10
of 100
pro vyhledávání: '"Boella, E."'
Autor:
López, R. A., Micera, A., Lazar, M., Poedts, S., Lapenta, G., Zhukov, A. N., Boella, E., Shaaban, S. M.
Firehose-like instabilities (FIs) are cited in multiple astrophysical applications. Of particular interest are the kinetic manifestations in weakly-collisional or even collisionless plasmas, where these instabilities are expected to contribute to the
Externí odkaz:
http://arxiv.org/abs/2205.02338
The nonlinear evolution of electromagnetic instabilities driven by the interpenetration of two $e^-\,e^+$ plasma clouds is explored using {\it ab initio} kinetic plasma simulations. We show that the plasma clouds slow down due to both oblique and Wei
Externí odkaz:
http://arxiv.org/abs/2109.00023
Autor:
Micera, A., Zhukov, A. N., López, R. A., Boella, E., Tenerani, A., Velli, M., Lapenta, G., Innocenti, M. E.
The role of solar wind expansion in generating whistler waves is investigated using the EB-iPic3D code, which models solar wind expansion self-consistently within a fully kinetic semi-implicit approach. The simulation is initialized with an electron
Externí odkaz:
http://arxiv.org/abs/2106.15975
Autor:
Gizzi, L. A., Boella, E., Labate, L., Baffigi, F., Bilbao, P. J., Brandi, F., Cristoforetti, G., Fazzi, A., Fulgentini, L., Giove, D., Koester, P., Palla, D., Tomassini, P.
Publikováno v:
Sci Rep. 2021; 11: 13728
The interaction of ultraintense laser pulses with solids is largely affected by the plasma gradient at the vacuum-solid interface, which modifies the absorption and ultimately, controls the energy distribution function of heated electrons. A micromet
Externí odkaz:
http://arxiv.org/abs/2106.00814
Autor:
Boella, E., Bingham, R., Cairns, R. A., Norreys, P., Trines, R., Scott, R., Vranic, M., Shukla, N., Silva, L. O.
Two-dimensional Particle-In-Cell simulations are used to explore collisionless shock acceleration in the corona plasma surrounding the compressed core of an inertial confinement fusion pellet. We show that an intense laser pulse interacting with the
Externí odkaz:
http://arxiv.org/abs/2011.01376
Autor:
Micera, A., Zhukov, A. N., López, R. A., Innocenti, M. E., Lazar, M., Boella, E., Lapenta, G.
We present results of two-dimensional fully kinetic Particle-In-Cell simulation in order to shed light on the role of whistler waves in the scattering of strahl electrons and in the heat flux regulation in the solar wind. We model the electron veloci
Externí odkaz:
http://arxiv.org/abs/2010.10832
Publikováno v:
Phys. Rev. Research 2, 023129 (2020)
A novel setup allows the Weibel instability and its interplay with the Biermann battery to be probed in laser-driven collisionless plasmas. Ab initio particle-in-cell (PIC) simulations of the interaction of short ($ \le ps$) intense $(a_0 \ge 1)$ las
Externí odkaz:
http://arxiv.org/abs/1907.10433
In situ observations of the solar wind show a limited level of particle temperature anisotropy with respect to the interplanetary magnetic field direction. Kinetic electromagnetic instabilities are efficient to prevent the excessive growth of the ani
Externí odkaz:
http://arxiv.org/abs/1907.08502
In the paper, gridless particle techniques are presented in order to solve problems involving electrostatic, collisionless plasmas. The method makes use of computational particles having the shape of spherical shells or of rings, and can be used to s
Externí odkaz:
http://arxiv.org/abs/1901.07771
The head-on collision between electrostatic shocks is studied via multi-dimensional Particle-In-Cell simulations. It is found that the shock velocities drop significantly and a strong magnetic field is generated after the interaction. This transverse
Externí odkaz:
http://arxiv.org/abs/1709.05908