A relativistic particle pusher for ultra-strong electromagnetic fields
arXiv:1910.04591 · doi:10.1017/S0022377820000719
Abstract
Abridged. Kinetic plasma simulations are nowadays commonly used to study a wealth of non-linear behaviours and properties in laboratory and space plasmas. In particular, in high-energy physics and astrophysics, the plasma usually evolves in ultra-strong electromagnetic fields produced by intense laser beams for the former or by rotating compact objects such as neutron stars and black holes for the latter. In these ultra-strong electromagnetic fields, the gyro-period is several orders of magnitude smaller than the timescale on which we desire to investigate the plasma evolution. Some approximations are required like for instance artificially decreasing the electromagnetic field strength which is certainly not satisfactory. The main flaw of this downscaling is that it cannot reproduce particle acceleration to ultra-relativistic speeds with Lorentz factor above . In this paper, we design a new algorithm able to catch particle motion and acceleration to Lorentz factor up to or even higher by using Lorentz boosts to special frames where the electric and magnetic field are parallel. Assuming that these fields are locally uniform in space and constant in time, we solve analytically the equation of motion in a tiny region smaller than the length scale of the spatial and temporal gradient of the field.
arXiv commentNew version with 1D PIC code tests and new references
References in corpus (17)
- Magnetars: Properties, Origin and Evolution
- Modeling high-energy pulsar lightcurves from first principles
- Particle acceleration in axisymmetric pulsar current sheets
- Ab-initio pulsar magnetosphere: three-dimensional particle-in-cell simulations of axisymmetric pulsars
- Teraelectronvolt pulsed emission from the Crab pulsar detected by MAGIC
- 3D Kinetic Pulsar Magnetosphere Models: Connecting to Gamma-Ray Observations
- A comprehensive comparison of relativistic particle integrators
- Structure-preserving second-order integration of relativistic charged particle trajectories in electromagnetic fields
- Effects of Radiation-Reaction in Relativistic Laser Acceleration
- Classical Radiation Reaction in Particle-In-Cell Simulations
- Theory of pulsar magnetosphere and wind
- On the Boris solver in particle-in-cell simulation
- Dissipation, Energy Transfer, and Spindown Luminosity in 2.5D PIC Simulations of the Pulsar Magnetosphere
- Temporal resolution criterion for correctly simulating relativistic electron motion in a high-intensity laser field
- Pulsar gamma-ray emission in the radiation reaction regime
- An fully implicit scheme for numerical integration of the relativistic particle equation of motion
- Particle acceleration in neutron star ultra-strong electromagnetic fields
Cited by in corpus (9)
- Accurately simulating nine-dimensional phase space of relativistic particles in strong fields
- Fermi-type particle acceleration from magnetic reconnection at the termination shock of a relativistic striped wind
- Special unitary particle pusher for extreme fields
- Particle acceleration and radiation reaction in a strongly magnetized rotating dipole
- A guiding center implementation for relativistic particle dynamics in the PLUTO code
- Particle acceleration in neutron star ultra-strong electromagnetic fields
- An Analytic Boris Pusher for Plasma Simulation
- Particle motion in neutron stars ultra-strong electromagnetic field: the influence of radiation reaction
- Particle acceleration and radiation reaction in strong spherical electromagnetic waves