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Hi,</div>
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Only direct transitions are taken into account<br>
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<div>________________________<br>
Prof. B. Bennecer<br>
Physics Laboratory of Guelma<br>
Faculty of Mathematics and Computing and Material Sciences<br>
University 8 Mai 1945 Guelma<br>
PO Box 401<br>
Guelma 24000<br>
Algeria<br>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> Wien <wien-bounces@zeus.theochem.tuwien.ac.at> on behalf of Fan <fxinwei123@gmail.com><br>
<b>Sent:</b> Monday, September 7, 2020 11:57 AM<br>
<b>To:</b> A Mailing list for WIEN2k users <wien@zeus.theochem.tuwien.ac.at><br>
<b>Subject:</b> [Wien] direct or indirect absorption?</font>
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<div dir="ltr">Dear Wien2k users,
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<div>Does the absorption generated by OPTIC include contributions from indirect transitions? I personally think only direct transitions have been taken into account. Because to compute the contribution of indirect transition, one has to know about the dispersion
of phonon. Is that right?</div>
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<div>With regards,</div>
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<div>Fan </div>
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