40 citations · 161 across the 16 of their papers we have counts for
15 papers
Laboratory study of magnetic reconnection in lunar-relevant mini-magnetospheres
Lucas Rovige, Filipe D. Cruz, Robert S. Dorst +7
Mini-magnetospheres are small ion-scale structures that are well-suited to studying kinetic-scale physics of collisionless space plasmas. Such ion-scale magnetospheres can be found…
Particle-in-cell simulations of pulsar magnetospheres: transition between electrosphere and force-free regimes
Fábio Cruz, Thomas Grismayer, Alexander Y. Chen +3
Global particle-in-cell (PIC) simulations of pulsar magnetospheres are performed with a volume, surface and pair production-based plasma injection schemes to systematically investi…
Strong collisionless coupling between an unmagnetized driver plasma and a magnetized background plasma
Filipe D. Cruz, Derek. B. Schaeffer, Fábio Cruz +1
Fast-exploding plasmas traveling though magnetized, collisionless plasmas can occur in a variety of physical systems, such as supernova remnants, coronal mass ejections, and laser-…
Novel Constraints on Axions Produced in Pulsar Polar-Cap Cascades
Dion Noordhuis, Anirudh Prabhu, Samuel J. Witte +3
Axions can be copiously produced in localized regions of neutron star magnetospheres where the ambient plasma is unable to efficiently screen the induced electric field. As these a…
Machine Learning-based models in particle-in-cell codes for advanced physics extensions
Chiara Badiali, Pablo J. Bilbao, Fábio Cruz +1
In this paper we propose a methodology for the efficient implementation of Machine Learning (ML)-based methods in particle-in-cell (PIC) codes, with a focus on Monte-Carlo or stati…
Model of pulsar pair cascades in non uniform electric fields: growth rate, density profile and screening time
Fábio Cruz, Thomas Grismayer, Simon Iteanu +2
Time-dependent cascades of electron-positron pairs are thought to be the main source of plasma in pulsar magnetospheres and a primary ingredient to explain the nature of pulsar rad…
Laser-Driven, Ion-Scale Magnetospheres in Laboratory Plasmas. I. Experimental Platform and First Results
D. B. Schaeffer, F. D. Cruz, R. S. Dorst +7
Magnetospheres are a ubiquitous feature of magnetized bodies embedded in a plasma flow. While large planetary magnetospheres have been studied for decades by spacecraft, ion-scale…
Laser-Driven, Ion-Scale Magnetospheres in Laboratory Plasmas. II. Particle-in-cell Simulations
Filipe D. Cruz, Derek B. Schaeffer, Fábio Cruz +1
Ion-scale magnetospheres have been observed around comets, weakly-magnetized asteroids, and localized regions on the Moon, and provide a unique environment to study kinetic-scale p…
Coherent emission from QED cascades in pulsar polar caps
Fábio Cruz, Thomas Grismayer, Alexander Y. Chen +2
Pulsar magnetospheres are thought to be filled with electron-positron plasma generated in pair cascades. The driving mechanism of these cascades is the emission of gamma-ray photon…
Kinetic instability in inductively oscillatory plasma equilibrium
Fábio Cruz, Thomas Grismayer, Luis O. Silva
A uniform in space, oscillatory in time plasma equilibrium sustained by a time-dependent current density is analytically and numerically studied resorting to particle-in-cell simul…
Kinetic model of large-amplitude oscillations in neutron star pair cascades
Fábio Cruz, Thomas Grismayer, Luis O. Silva
Electron-positron pair cascades developed in the extreme electromagnetic fields of neutron star polar caps are considered a key source of magnetospheric plasma in these objects. We…
Filling the Magnetospheres of Weak Pulsars
Alexander Y. Chen, Fabio Cruz, Anatoly Spitkovsky
Recent advances in numerical algorithms and computational power have enabled first-principles simulations of pulsar magnetospheres using Particle-in-Cell (PIC) techniques. These ab…
Formation of collisionless shocks in magnetized plasma interaction with kinetic-scale obstacles
F. Cruz, E. P. Alves, R. A. Bamford +3
We investigate the formation of collisionless magnetized shocks triggered by the interaction between magnetized plasma flows and miniature-sized (order of plasma kinetic-scales) ma…
Quantum Electrodynamics vacuum polarization solver
Thomas Grismayer, Rui Torres, Pedro Carneiro +3
The self-consistent modeling of vacuum polarization due to virtual electron-positron fluctuations is of relevance for many near term experiments associated with high intensity radi…
Formation of Lunar Swirls
R. A. Bamford, E. P. Alves, F. Cruz +9
In this paper we show a plausible mechanism that could lead to the formation of the Dark Lanes in Lunar Swirls, and the electromagnetic shielding of the lunar surface that results…