[CPMD-list] CPMD tests

Juerg Hutter hutter at pci.unizh.ch
Fri Dec 5 14:28:08 CET 2003


> Dear Prof. Hutter,
>
> I'm sorry - Perhaps I phrased it incorrectly.
>
> At the bottom of p368 of Bornemann and Schuette
> is the sentence:
>
> "Now the crucial methodological idea is to make the
> two-time-scale ansatz"
>
>
> This ansatz is repeated throughout the paper.
> I think this ansatz is only justified if orbital
> motion consists purely of high-frequency oscillations.
>

The proof relies only on condition A in the paper.
The efficiency of the CP method depends on the
time scale separation. With this we are back to my first
mail ...

Juerg Hutter




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