Absorption Calculation using RPA
Posted: Wed Feb 21, 2024 6:07 pm
Dear Yambo community,
I am new to YAMBO and I performed calculations using IP as starting point then I moved into RPA
then in case of IP I used the attached formula in order to get my absorption curve (e1 is the real
part of dielectric function and e2 is the imaginary one), moving into RPA
tutorial I noticed that in the first lines of the tutorial mentioned that the imaginary part of the macroscopic
dielectric function as a function of frequency is equal to absorption as a function of frequency.
So my question is, should use the attached absorption formula to plot my absorption curve
while I perform calculation under RPA or not ? and how the Im(e(omega)) is related to abs(omega)?
Thank you in advance!
Best regards,
Christos Tyrpenou
I am new to YAMBO and I performed calculations using IP as starting point then I moved into RPA
then in case of IP I used the attached formula in order to get my absorption curve (e1 is the real
part of dielectric function and e2 is the imaginary one), moving into RPA
tutorial I noticed that in the first lines of the tutorial mentioned that the imaginary part of the macroscopic
dielectric function as a function of frequency is equal to absorption as a function of frequency.
So my question is, should use the attached absorption formula to plot my absorption curve
while I perform calculation under RPA or not ? and how the Im(e(omega)) is related to abs(omega)?
Thank you in advance!
Best regards,
Christos Tyrpenou