Lumen 2.1

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 as BSE solver
• Added Gaussian smearing for the phonon-assisted response functions
• ExcPh databases now can be loaded also if requested band ranges is smaller than available one

Code optimization

• Memory is now distributed in the old diagonalization solver (without using the ldiago library) interfaced with scalapack
• Fixed memory duplication in Slepc solver

Fixes

• Fixed compilation on MacOsX
• Fixed reading imaginary part from ndb.QP in yambo_nl
• Different compilation issues fixed: with intel compilers, hdf5, openACC, etc....
• Collisions table: added missing n_sp_pol variable

More

• added support to llvm compiler
• upgraded interface with libxc to work with version 7.0