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

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....