Thanks

Therefore, we shall consider excitation energies as exciton identifier. If anisotropy exists in the system, it only affects the distribution of excitonic wavefunction over the real space.

Please, I have another unanswered question, that I asked it 56 days before in the forum. It was about projected DOS. Does exciting project DOS onto the real spherical harmonic (say p_{x}, P_{y} , …) ore not? If not, how could I get these orbital from the results?

Thanks for everything.

]]>the files EXCITON*.OUT contain the solutions of the BSE Hamiltonian. Specifically, excitation energies and oscillator strengths are written in the second and third columns, respectively. Three EXCITON*.OUT files are printed, corresponding to the three Cartesian components of the dipole operator employed for the calculation of the momentum matrix elements. The orientation of the transition-dipole moment, as well as possible anisotropy effects, are reflected in the real-space distribution of the electron-hole pair, that can be plotted using **exciting***carbon*.

On the other hand, in anisotropic crystals, non-vanishing off-diagonal components of the dielectric tensor are to be expected. By setting equal to ` true` the attribute dfoffdiag of the element xs, nine EPSILON*.OUT files will be printed, corresponding to all the component of the full dielectric tensor.

Additional post-processing of the full dielectric tensor can be performed using the ` LayerOptics` code (see the corresponding tutorial at this link).

Best wishes,

Caterina Cocchi

(` exciting` team)

I would like to plot excitons by appreciated new version of exciting (carbon), but it seems that we have no choice about the different optical components in anisotropic crystals!

As it can be seen in the tutorial about exciton, "lambda" denotes to the index of "exciton" in EXCITON_BSEsinglet_*.OUT file, but we have, for example, at lest two inequivalent optical components (i.e. two EXCITON_BSEsinglet_*.OUT files) in a uniaxial lattice. The question is that how could one include this difference in the input?

regards

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