答复: fix addforce with minimization

Please always reply to the mailing list and not only to individual people. Thanks, Axel.
Dear lammps users:
Thank you axel. I will try to define an “atom” style variable. Since after energy minimization the forces on every atom approaches zero, so by adding force to the mobile atoms to achieve force unload may not be correct.
Then if I want to unload the force and find the new equilibrium atomic positions after energy minimization (the upper and lower boundary atoms don’t move), which command is appropriate in lammps?
Any helpful suggestions will really be apprieciated.
Best wishes,
Ann

the net force on atoms is minimized, that doesn’t mean, that all individual force contributions must be zero, they just need to cancel.