[Wien] direct or indirect absorption?

[Badis Bennecer]

Hi,

Only direct transitions are taken into account

________________________
Prof. B. Bennecer
Physics Laboratory of Guelma
Faculty of Mathematics and Computing and Material Sciences
University 8 Mai 1945 Guelma
PO Box 401
Guelma 24000
Algeria



________________________________
From: Wien <wien-bounces at zeus.theochem.tuwien.ac.at> on behalf of Fan <fxinwei123 at gmail.com>
Sent: Monday, September 7, 2020 11:57 AM
To: A Mailing list for WIEN2k users <wien at zeus.theochem.tuwien.ac.at>
Subject: [Wien] direct or indirect absorption?

Dear Wien2k users,

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?

With regards,

Fan
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