Defintion HILLS_W

[ole_nickel]

Hello,

I am not sure what the width of the Gaussian hills (HILLS_W) used for metadynamics means exactly.
Is it the 1 sigma (Standard deviation), 2 sigma or the FWHM (Full width at half maximum) of the Gaussian?

Thanks

[ferenc_karsai]

HILLS_W is the standard deviation used in the second equation (for V(t,\ksi)) on the following page:
wiki/index.php/Metadynamics