<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">
<style type="text/css">
<!--
@page { margin: 2cm }
P { margin-bottom: 0.21cm }
A:link { so-language: zxx }
-->
</style>
<p style="margin-bottom: 0cm"> <span lang="en-US">Dear all</span></p>
<p style="margin-bottom: 0cm" lang="en-US"><br>
</p>
<p style="margin-bottom: 0cm" lang="en-US">I got a version of
Quantum Espresso through your website, and was so happy to realize
that it also performs all electron atomic calculations by ld1.x and
furthermore to notice that the code provides some excited states.
</p>
<p style="margin-bottom: 0cm" lang="en-US"><br>
</p>
<p style="margin-bottom: 0cm" lang="en-US">I would be interested in
investigating properties of atoms (particularly the noble gas and
alkali atoms) trapped in some environments modeled by external
parametric potentials such as gaussian type potential :
</p>
<p style="margin-bottom: 0cm">
</p>
<p style="margin-bottom: 0cm" lang="en-US">W(r)=-w0exp[-(r-rc)**2/sigma**2]<br>
</p>
<p style="margin-bottom: 0cm" lang="en-US"><br>
</p>
<p style="margin-bottom: 0cm" lang="en-US">where w0, rc and sigma are
constants.</p>
<p style="margin-bottom: 0cm" lang="en-US">I have already succeeded
in running the ld1 program for free atoms. I would like to know how
to include the above external potential in the code. As well, I would
like to know whether there are reference energy values for DFT
computation from your code.
</p>
<p style="margin-bottom: 0cm"><br>
</p>
<p style="margin-bottom: 0cm;" lang="en-US">I look forward to hearing
from you.</p><p style="margin-bottom: 0cm;" lang="en-US"><br> With kindest regards.</p><p style="margin-bottom: 0cm" lang="en-US"><br></p>
<p style="margin-bottom: 0cm" lang="en-US">----------------------------------------------------</p>
<p style="margin-bottom: 0cm">Anne Justine ETINDELE<br>PhD student in
Atomic Physics<br> Faculty of Science, University of Douala<br> B.P.
24157 Douala<br>Cameroon<br>Phone : (+237) 95 16 27 01 (Cel.)<br>E-mail
: <font color="#000080"><span lang="zxx"><u><a href="mailto:annetindele@yahoo.fr">annetindele@yahoo.fr</a></u></span></font>
<br><br>
</p>
</td></tr></table>