m-BSE and SXX

Deals with issues related to computation of optical spectra in reciprocal space: RPA, TDDFT, local field effects.

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

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AzulineSky
Posts: 9
Joined: Tue Oct 18, 2022 10:25 pm

m-BSE and SXX

Post by AzulineSky » Thu Jun 08, 2023 8:21 am

Dear all,

I'm currently reading the following paper: https://doi.org/10.1103/PhysRevResearch.2.013091
In this work the authors used the model-BSE and SXX (see Eq. 7) as a low-cost alternatives to reduce the computational cost of dielectrically screened Coulomb interaction.
I'm very interested in this approach to perform BSE calculations for larger systems. The paper states that they did their calculations in Yambo but I could not find any reference in the wiki.

Are these screening models currently implemented in the official version of Yambo? If yes, how can I use them?

Best regards,
Max
Max Großmann
TU Ilmenau
Germany

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Davide Sangalli
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Re: m-BSE and SXX

Post by Davide Sangalli » Thu Jun 08, 2023 10:32 am

Dear Max,
indeed It would be nice to have something similar.

However, this is not implemented in yambo at present.

Best,
D.
Davide Sangalli, PhD
CNR-ISM, Division of Ultrafast Processes in Materials (FLASHit) and MaX Centre
https://sites.google.com/view/davidesangalli
http://www.max-centre.eu/

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