Metadynamics in cp2k

Raghav raghavs... at
Wed Jul 18 12:49:38 UTC 2018

Dear cp2k users,
            I have some questions regarding implementation of metadynamics 
in cp2k -

1. Is the parameter LAMBDA of section METAVAR 
) same as the coupling constant k of the extended lagrangian scheme and if 
yes then 
2. How do we select the values this constant k and Mass of the auxilary 
variables for our system .

In the literature it says that Mass is chosen to maintain an adiabatic 
separation of atomic and auxiliary variable dynamics but I need a more 
clear answer, and what about k? How do we choose that?
I am using coordination numbers as collective variables for my system.

Thanks and regards
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