Dear Jingda,
yes, the exciton dispersion is a function of the exciton center mass momentum Q. I think you need to clarify this, and you can have a look at papers where excitonic band structure are shown: see e.g.
Cudazzo et al. PRL 116, 066803 (2016)
Qiu et al. PRL 115, 176801 (2015)
Bonacci et al. PRM 6, 034009 (2022)
Effective mass for exciton models are calculated considering the effective mass of electrons and holes. This is anyway not a question related to Yambo,
you can find this information in textbook and also on Wikipedia.
Best,
Daniele
Interpolating exciton dispersion
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Daniele Varsano
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Re: Interpolating exciton dispersion
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/
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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Guo_BIT
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Re: Interpolating exciton dispersion
Dear Daniele,
Thank you very much for your kind and patient replies
Best wishes!
Jingda Guo
Thank you very much for your kind and patient replies
Best wishes!
Jingda Guo
Jingda Guo
Beijing Institute of Technology
Beijing Institute of Technology