SchwingerProcessWrapper.H File Reference

#include "QedWrapperCommons.H"
#include <AMReX_Random.H>
#include <picsar_qed/physics/schwinger/schwinger_pair_engine_core.hpp>
#include <cmath>

Go to the source code of this file.

Functions
AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE amrex::Real	getSchwingerProductionNumber (const amrex::Real dV, const amrex::Real dt, const amrex::ParticleReal Ex, const amrex::ParticleReal Ey, const amrex::ParticleReal Ez, const amrex::ParticleReal Bx, const amrex::ParticleReal By, const amrex::ParticleReal Bz, const amrex::ParticleReal PoissonToGaussianThreshold, amrex::RandomEngine const &engine)

Function Documentation

getSchwingerProductionNumber()

AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE amrex::Real getSchwingerProductionNumber	(	const amrex::Real	dV,
		const amrex::Real	dt,
		const amrex::ParticleReal	Ex,
		const amrex::ParticleReal	Ey,
		const amrex::ParticleReal	Ez,
		const amrex::ParticleReal	Bx,
		const amrex::ParticleReal	By,
		const amrex::ParticleReal	Bz,
		const amrex::ParticleReal	PoissonToGaussianThreshold,
		amrex::RandomEngine const &	engine )

This function is a wrapper around a PICSAR function which calculates the number of Schwinger pairs created at a given timestep and in a given cell as a function of the EM field in that cell.

Parameters

[in]	dV	Volume of the cell.
[in]	dt	temporal step.
[in]	Ex	x-component of the electric field on the cell.
[in]	Ey	y-component of the electric field on the cell.
[in]	Ez	z-component of the electric field on the cell.
[in]	Bx	x-component of the magnetic field on the cell.
[in]	By	y-component of the magnetic field on the cell.
[in]	Bz	z-component of the magnetic field on the cell.
[in]	PoissonToGaussianThreshold	If the expected number of created pairs is below this parameter, a Poisson distribution is used to draw the number of created pairs. Otherwise a Gaussian distribution is used.
[in]	engine	the random number generator state & factory

Returns

the number of pairs generated via the Schwinger process