Fixes and improvements to classical particles

Micael Oliveirarequested to merge
classical_particle_units_and_fixes into develop

Description

A few fixes and improvements to classical particles:

  • Replaced ClassicalParticle in variable names with Particle.
  • Use atomic units for coulomb force.
  • Bug fix in coulomb force: the partner charge and position are required quantities.
  • Add a test for the Coulomb force.

News snippet

A few fixes and improvements to classical particles.

Checklist

  • I have checked that my code follows the Octopus coding standards
  • I have added tests for all the new features added in this request.

Merge request reports