EDD / Intraband contribution

[Dipankar Saha]

Hi,

1)
 EDD analysis
QuantumATK version 2018.06

What does a negative sign mean? Is it depletion?

2)
Optical spectra
QATK 2019.12

Any Ref. for 'Intraband contribution' calculation ? 

Thanks and Regards_
Dipankar Saha

[Petr Khomyakov]

Regarding #1, negative EDD means depletion of electrons compared to a reference system of neutral, non-interacting atoms.

Regarding #2, see the manual https://docs.quantumatk.com/manual/Types/OpticalSpectrum/OpticalSpectrum.html.