[gmx-users] gmx potential

[Shreyas Kaptan]

Dear GMX users,

I am trying to use the gmx potential tool to calculate the potential
created by applying a constant electric field in the Z-direction.

I am using the 2018 gromacs version. The electric field was applied with:


electric-field-z         = 0.00625 0 0 0; 0.1 V voltage for 160 angstrom Z
len

When I use the gmx potential (from 2016.1 version) on the result of the
simulation, I get the attached output.  I am not sure how to interpret the
result. I expected a 100 V potential drop across the box, but I do not see
that. Is that an error on part of my interpretation or is there something
wrong with my setup?

Thanks in advance!

Shreyas



-- 
Shreyas Sanjay Kaptan