Lumen 2.1: Difference between revisions

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===Main new features===
===Main new features===


* <u>Non-linear response with the Floquet formalism:</u> in Lumen 2.1 it is possible to calculate non-linear response functions using Floquet formalism, for the moment this implementation is limited to the independent particle approximation with or without quasi-particle correction. See tutorial: [[SHG from Floquet formulation]]
* <u>Non-linear response with the Floquet formalism:</u> in Lumen 2.1 it is possible to calculate non-linear response functions using Floquet formalism, for the moment this implementation is limited to the independent particle approximation with or without quasi-particle correction. See tutorial: [[SHG from Floquet formulation]]
* Symmetry average of the dielectric constant for q=0 momentum  
* Symmetry average of the dielectric constant for q=0 momentum  
* Added interface to the CHASE library
* Added interface to the CHASE library

Revision as of 12:12, 11 June 2026

Lumen 2.1 release was supported by the EU through the TIMES MSCA-DN

Release Notes

This is the second release of the lumen code, after the reboot based on yambo 5.3

Main new features

  • Non-linear response with the Floquet formalism: in Lumen 2.1 it is possible to calculate non-linear response functions using Floquet formalism, for the moment this implementation is limited to the independent particle approximation with or without quasi-particle correction. See tutorial: SHG from Floquet formulation
  • Symmetry average of the dielectric constant for q=0 momentum
  • Added interface to the CHASE library
  • Added Gaussian smearing for the phonon-assisted response functions

Code optimization

Fixes

  • Fixed compilation on MacOsX
  • Fixed reading imaginary part from ndb.QP in yambo_nl
  • Different compilation issues fixed: with intel compilers, hdf5, etc....

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