to calculate excited states and response properties from first-principles based on many-body theory
The Frontiers in Ultrafast Phenomena in Quantum Materials Workshop 2026 will take place at the INFN–LNF Laboratories in Frascati, from Tuesday 21 April to Friday 24 April 2026. The event is organized by the TIMES Doctoral Network, funded by the European Union under the Marie Skłodowska-Curie Actions program. Its mission is to train a new…
Convergence of dielectric constant with respect the number of k-points can be very slow in many systems. For this reason in Lumen it is implemented a double-grid technique that speeds up convergence versus k-points with a computational cost comparable to the standard calculations. Here we provide a tutorial for this approach: https://www.lumen-code.org/wiki/index.php?title=Fast_convergence_of_dielectric_constant_with_double_grid The method for…
Three PhD students: Anna Romani, Petru Milev and Torsten Geirsoon joint the Lumen team. They will work on different project ranging from non-linear response, pump and probe, magnon, real-time TDDFT.
A new tutorial is online on the generation of user defined external fields for yambo_rt/yambo_nl using ypp_rt or YamboPy.https://www.lumen-code.org/wiki/index.php?title=Real-time_dynamics_with_external_field_read_from_file
A new tutorial on calculating shift current (SC) using Lumencode is now available online.In this tutorial, we present our real-time approach to obtaining the SC response and provide an example involving a monolayer GeS. The role of excitons in the SC response can also be taken into account using our approach. Tutorial is available here…
All Lumen tutorials are now online in the wiki webpage: https://www.lumen-code.org/wiki/index.php?title=Tutorials notice that some inputs are slightly different from the Yambo ones because we are making an effort to simplify them and make them more accessible to new users.
Doxygen documentation for the Lumen code is now available online. Notice that this is an beta version of the documentation. We advice you to visit it again in the next months, we will keep it updated with the latest version of the code.Lumen Doxygen
Lumen code is a many-body perturbation code for the study of excited states and optical properties. Lumen is a fork of the Yambo code. In the first version we will make maximum to keep compatibility with Yambo 5.3/5.4.