Dear Lucas
TDDFPT is definitely a linear-response method. If you want to read
something, there is plenty of references in this file
/path-to-your-QE/TDDFPT/README
HTH
Giuseppe
Quoting Lucas Nicolás Lodeiro Moraga :
Hello all,
I am introducing myself into the Time Dependent DFT to compute
Hello all,
I am introducing myself into the Time Dependent DFT to compute UV-Vis
spectroscopy. Among the literature, I find that there are two
approximations for that, the Linear Response and the Real Time propagation
approaches...
But, in some codes like CP2K an Quantum ESpresso, the implemented