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[Matthieu Verstraete <mjv500@york.ac.uk>]

I don't know. I've noticed the same and trusted the guy who coded it 
(Jean-Paul Crocombette). The factor 3 could come from the fact that the 
<v>^2 is calculated as the sum of the x,y, and z components, instead of 
just one of them as it is (I think) in Savrasov's formula. If you have 
another way of checking, please do tell me. You could for example compare 
with Savrasov's data for some elements (which is what Jean-Paul did, I 
believe).

The Lorentz quantum definition could just be typos. Maybe not.


Matthieu

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Dr. Matthieu Verstraete                 mailto:mjv500@york.ac.uk
Dept. of Physics, University of York,     tel: +44 1904 43 22 08
Heslington, YO10 5DD York, United Kingdom fax: +44 1904 43 22 14