Particle pusher

The particle pusher algorithms are implemented through a dedicated Pusher Module. The core of this module is the abstract base class gtsimulation.GTSimulator. Any custom integrator must be defined as a concrete subclass of this class, which requires the explicit implementation of a AlgoStep() method. This method returns a tuple of three elements: the updated velocity vector, the new Lorentz factor, and an auxiliary Lorentz factor used in synchrotron radiation loss calculations

The module comes with a library of pre-implemented algorithms ready for immediate use:

• Runge-Kutta integrators (4th and 6th order).

• Modified Buneman-Boris integrator.

• Vay integrator.

• Higuera-Cary integrator.

The specific classes that implement these pusher algorithms can be found within the gtsimulation.pusher module and its submodules. The abstract architecture enables users to seamlessly integrate their own particle pushers by subclassing the base class and implementing the required interface.