796 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of LisbonPT22 papers
- Centre National de la Recherche ScientifiqueFR16 papers
- Universität InnsbruckAT16 papers
- Universitat Politècnica de ValènciaES14 papers
- Instituto de Investigación en Recursos CinegéticosES13 papers
- Universidad Complutense de MadridES13 papers
- Center for Astrophysics Harvard & SmithsonianUS12 papers
- Linköping UniversitySE11 papers
- Universidade de VigoES10 papers
- Universidad de GranadaES7 papers
- Universitat de ValènciaES7 papers
- Centro de Física Teórica e Computacional6 papers
45 papers · 1 filter
Relativistic effects on stopping power of plasmas with heavy ions
A. M. P. Mendez, J. Chacón-Gijón, J. Vázquez-Moyano +1
This work investigates the electronic stopping power for protons of a tungsten plasma at various electron densities and temperatures. The study employs a dielectric formalism to mo…
Density jump as a function of magnetic field strength for perpendicular collisionless shocks with anisotropic upstream pressure
Antoine Bret
Shock waves are common in astrophysical environments. On many occasions, they are collisionless, which means they occur in settings where the mean free path is much larger than the…
Density jump as a function of magnetic field strength for parallel collisionless shocks with anisotropic upstream pressure
Antoine Bret
The properties of collisionless shocks are frequently assessed in the magnetohydrodynamics (MHD) model. Yet, in a collisionless plasma, an ambient magnetic field can sustain a stab…
Density jump for oblique collisionless shocks in pair plasmas: allowed solutions
Antoine Bret, Ramesh Narayan
Shockwaves in plasma are usually dealt with using Magnetohydrodynamics (MHD). Yet, MHD entails the assumption of a short mean free path, which is not fulfilled in a collisionless p…
Density jump as a function of magnetic field for switch-on collisionless shocks in pair plasmas
Antoine Bret, Ramesh Narayan
The properties of collisionless shocks, like the density jump, are usually derived from magnetohydrodynamics (MHD), where isotropic pressures are assumed. Yet, in a collisionless p…
Quantum electrodynamic effects on counter-streaming instabilities in the whole \textbf{k} space
Antoine Bret
In a recent work [Bret, EPL \textbf{135} (2021) 35001], quantum electrodynamic (QED) effects were evaluated for the two-stream instability. It pertains to the growth of perturbatio…
Building a weak shockwave from linear modes
Antoine Bret, Ramesh Narayan
In shockwave theory, the density, velocity and pressure jumps are derived from the conservation equations. Here, we address the physics of a weak shock the other way around. We fir…
Kinetic Simulations of Strongly-Magnetized Parallel Shocks: Deviations from MHD Jump Conditions
Colby C. Haggerty, Antoine Bret, Damiano Caprioli
Shocks waves are a ubiquitous feature of many astrophysical plasma systems, and an important process for energy dissipation and transfer. The physics of these shock waves are frequ…
Quantum electrodynamic effects on the two-stream instability
Antoine Bret
We consider the quantum electrodynamic corrections to the two-stream instability. We find these corrections vanish at first order unless a guiding magnetic field is…
Modified jump conditions for parallel collisionless shocks
Antoine Bret
Within the context of Magnetohydrodynamics (MHD), the properties of a parallel shock do not depend on the field strength, as the field and the fluid are disconnected for such a geo…
Bridging the gap between collisional and collisionless shock waves
Antoine Bret, Asaf Pe'er
While the front of a fluid shock is a few mean-free-paths thick, the front of a collisionless shock can be orders of magnitude thinner. By bridging between a collisional and a coll…
Suppression of the Richtmyer-Meshkov Instability due to a Density Transition Layer at the Interface
Takayoshi Sano, Kazuki Ishigure, Fransisco Cobos-Campos
We have investigated the effects of a smooth transition layer at the contact discontinuity on the growth of the Richtmyer-Meshkov instability (RMI) by hydrodynamic numerical simula…
Particle trajectories in Weibel filaments: influence of external field obliquity and chaos
A Bret, M E Dieckmann
When two collisionless plasma shells collide, they interpenetrate and the overlapping region may turn Weibel unstable for some values of the collision parameters. This instability…
Density jump as a function of magnetic field for collisionless shocks in pair plasmas: the perpendicular case
Antoine Bret, Ramesh Narayan
In the absence of frequent binary collisions to isotropize the plasma, the fulfillment of the magnetohydrodynamic (MHD) Rankine-Hugoniot jump conditions by collisionless shocks is…
Density jump as a function of magnetic field strength for parallel collisionless shocks in pair plasmas
Antoine Bret, Ramesh Narayan
Collisionless shocks follow the Rankine-Hugoniot jump conditions to a good approximation. However, for a shock propagating parallel to a magnetic field, magnetohydrodynamics states…
Expansion of a radially symmetric blast shell into a uniformly magnetized plasma
M E Dieckmann, Q Moreno, D Doria +7
The expansion of a thermal pressure-driven radial blast shell into a dilute ambient plasma is examined with two-dimensional PIC simulations. The purpose is to determine if laminar…
On the Formation and Properties of Fluid Shocks and Collisionless Shock Waves in Astrophysical Plasmas
Antoine Bret, Asaf Pe'er
When two plasmas collide, their interaction can be mediated by collisionless plasma instabilities or binary collisions between particles of each shell. By comparing the maximum gro…
Emergence of MHD structures in a collisionless PIC simulation plasma
M E Dieckmann, D Folini, R Walder +5
The expansion of a dense plasma into a dilute plasma across an initially uniform perpendicular magnetic field is followed with a one-dimensional particle-in-cell (PIC) simulation o…
Hierarchy of instabilities for two counter-streaming magnetized pair beams: influence of field obliquity
Antoine Bret, Mark Eric Dieckmann
The hierarchy of unstable modes when two counter-streaming pair plasmas interact over a flow-aligned magnetic field has been recently investigated [PoP \textbf{23}, 062122 (2016)].…
Kinetic inhibition of MHD-shocks in the vicinity of a parallel magnetic field
Antoine Bret, Asaf Pe'er, Lorenzo Sironi +2
According to magnetohydrodynamics (MHD), the encounter of two collisional magnetized plasmas at high velocity gives rise to shock waves. Investigations conducted so far have found…
Instantaneous charge state of Uranium projectiles in fully ionized plasmas from energy loss experiments
Roberto Morales, Manuel D. Barriga-Carrasco, David Casas
The instantaneous charge state of uranium ions traveling through a fully ionized hydrogen plasma has been theoretically studied and compared with one of the first energy loss exper…
Particles trajectories in Weibel magnetic filaments with a flow-aligned magnetic field
Antoine Bret
For a Weibel shock to form, two plasma shells have to collide and trigger the Weibel instability. At saturation, this instability generates in the overlapping region magnetic filam…
Hierarchy of instabilities for two counter-streaming magnetized pair beams
Antoine Bret
The instabilities triggered when two counter-streaming pair beams collide are analyzed. A guiding magnetic field is accounting for, while both beams are considered identical and co…
Calculations on the stopping power of a heterogeneous Warm Dense Matter
David Casas, Alexander A. Andreev, Matthias Schnürer +3
The stopping power of Warm Dense Matter (WDM) is estimated by means of the individual contributions of free electrons and bound electrons existing in this special kind of matter, l…