Real-time dynamics with external field read from file

Sum frequency generation

In this tutorial we will see how to generate an external field in a format compatible with Lumen and then use it to run real-time simulation.

We will also prove a simple python script to do it, that you can easily modify to create your own external field.

The tutorial is divided in three sections: 1) generate external field with YamboPy, 2) generate external field with ypp_rt 3) use the external field in the real-time calculations.

Generate external field with ypp_rt

With ypp_rt one can generate all external fields that implemented in the Yambo code in the file