[gmx-users] How to add an user-defined external potential

[Sanku M]

Hi,
  I am planning to add an external harmonic potential along z direction of a system : i.e U(z)= 0.5*K*z(**2)
I was wondering if I can get an help on how to add an user-defined external potential like this in gromacs ? 
Thanks
Sanku


      
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