[gmx-users] Autocorrelation of dipole moment

[Chathurika Abeyrathne]

Thank you.
If I apply an electric field will I be able to get only positive values?


Regards,
Chathurika.




2011/6/22 André Farias de Moura <moura at ufscar.br>

> sure, the ACF for a vector gives you the average cosine between that vector
> at time t=0 and the same vector at a later time lag, thus negative values
> may
> be seen as an inversion of the direction to which the vector points
> out (-1 would
> be the value for a vector lying 180 degrees away from the direction at
> t=0).
>
> best
>
> Andre
>
> On Tue, Jun 21, 2011 at 8:29 PM, Chathurika Abeyrathne
> <c.abeyrathne at student.unimelb.edu.au> wrote:
> >
> >
> > Hi,
> >
> > Is it possible to get negative values for normalized autocorrelation of
> > total dipole moment.
> >
> > Thank you.
> >
> >
> > Regards,
> > Chathurika.
> >
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