Calculatind recombination rate/ radioactive lifetime

Deals with issues related to computation of optical spectra, solving the Bethe-Salpeter equation.

Moderators: Davide Sangalli, andrea.ferretti, myrta gruning, andrea marini, Daniele Varsano

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Ponnappa
Posts: 20
Joined: Sat Sep 07, 2024 7:26 pm

Calculatind recombination rate/ radioactive lifetime

Post by Ponnappa » Wed Jan 15, 2025 3:12 pm

Dear Yambo Developers and Users,
I am having some issues understanding how to find the recombination rate. As per https://doi.org/10.1103/PhysRevB.100.075135 the radiactive rate for 2D is given by r_s(0) = (e^2*p_s^2)/(\epsilon_0*m^2*c*A*E_s(0)). Here, are the transition dipoles given by p_s = Maximum_Residual_Value*Stength (which are obtained in exc_qpt1_E_sorted file)? Also, what are the units of maximum residual values?

Looking forward for the reply. Thank you in advance.

Regards,
Ponnappa K. P.
Ponnappa K. P.
Phd Student
Harish Chadra Research Institute, India

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Daniele Varsano
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Re: Calculatind recombination rate/ radioactive lifetime

Post by Daniele Varsano » Thu Jan 16, 2025 9:17 am

Dear Ponappa,

In this thread
viewtopic.php?t=1947

you can find useful information for the calculation of radiative lifetime.

Best,
Daniele
Dr. Daniele Varsano
S3-CNR Institute of Nanoscience and MaX Center, Italy
MaX - Materials design at the Exascale
http://www.nano.cnr.it
http://www.max-centre.eu/

Ponnappa
Posts: 20
Joined: Sat Sep 07, 2024 7:26 pm

Re: Calculatind recombination rate/ radioactive lifetime

Post by Ponnappa » Wed Jan 22, 2025 6:15 pm

Dear Daniele,

Thank you for the suggestion, which was helpful. However, I still have some minor doubts regarding the dimension, which I posted in the earlier mentioned thread (viewtopic.php?t=1947). Looking forward for the response for the same.

Regards,
Ponnappa K. P.
Ponnappa K. P.
Phd Student
Harish Chadra Research Institute, India

User avatar
Daniele Varsano
Posts: 4207
Joined: Tue Mar 17, 2009 2:23 pm
Contact:

Re: Calculatind recombination rate/ radioactive lifetime

Post by Daniele Varsano » Thu Jan 23, 2025 8:37 am

Dear Ponappa,

I suggest you to write directly to the author of the paper (Maurizia Palummo) mentioning your post in the forum.

Best,

Daniele
Dr. Daniele Varsano
S3-CNR Institute of Nanoscience and MaX Center, Italy
MaX - Materials design at the Exascale
http://www.nano.cnr.it
http://www.max-centre.eu/

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