[ESPResSo-users] Non neutral charged system

[Salvador H-V]

Hi Everybody,

I am performing the tutorial simulations concerning electrostatics.

I found in the pearl necklace tutorial  the following commands:

# SET UP THE POLYELECTROLYTES

polymer $num_polymers $num_monomers_per_polymer 1.0 charge 1.0 distance 3 types 0 1 bond 0

counterions [expr $num_polymers*$num_monomers_per_polymer] charge -1.0 type 2

If I understood well the user guide, the polyelectrolyte is only partially charged, but, we are placing a number of counterions equal

to a full charged polyelectrolyte. This means that the system has not a neutral charge

However when I run the simulation, ESPResSo does not complain about not charge neutrality. So, I was wondering how EXPResSo handles no neutral charged systems.

Thanks a lot in advance,

Salvador