The Bethe-Salpeter equation (BSE) tutorial consists of the following parts: They can be performed independently, but for people who are new to BSE calculations the order presented above is …

This tutorial explores the options available in Yambo for the numerical solution of the Bethe-Salpeter equation. Before running this tutorial, you should have carried out the tutorial …

VASP can compute the frequency-dependent dielectric function with excitonic effects based on the Bethe-Salpeter equation. The calculation can be done on top of the electronic ground-state …

This tutorial discusses how to calculate the macroscopic dielectric function including excitonic effects within the Bethe-Salpeter (BS) approach. Crystalline silicon is used as test case. A …

The formalism of the Bethe-Salpeter equation (BSE) allows to include the excitonic effects in the calculation of the dielectric function. The excitation energies are the eigenvalues ωλ ω λ of the …

In this tutorial, you will learn about three methods that go beyond DFT: the many-body perturbation theory in the GW approach, the random-phase approximation (RPA), and the …

Tutorials¶ The bse tutorial tutorial on the Bethe-Salpeter Equation (BSE) deals with the computation of the macroscopic dielectric function of Silicon within the Bethe-Salpeter equation.

Expand fine-grid WFNs in term of coarse-grid WFNs. Step 0: Obtain WFNs on a coarse and fine grid. How to get a good interpolation? Include a large number of bands from the coarse grid …

This lesson discusses how to calculate the macroscopic dielectric function, ϵ ∞ (ω), including excitonic effects within the Bethe-Salpeter equation (BSE). Crystalline silicon is used as test …

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