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...n spectra when strong excitonic effects are present via the Bethe-Salpeter equation. # [[BSE solvers overview|Solve the BSE eigenvalue problem with different numerical methods]]

== More on Linear Response and BSE == ...n spectrum of bulk and low dimension materials by using the Bethe-Salpeter equation-->

...n spectra when strong excitonic effects are present via the Bethe-Salpeter equation. # [[BSE solvers overview|Solve the BSE eigenvalue problem with different numerical methods]]

...optical absorption spectrum of bulk BN within the Bethe-Salpeter equation (BSE)framework for a previously calculated Bethe-Salpeter (BS) kernel. You will ...Hermitian case (BSE neglecting coupling) and for the pseud-hermitian case (BSE with coupling)<ref name="Gruning2011"/>.

...obtain an optical absorption spectrum within the Bethe-Salpeter equation (BSE) framework by diagonalizing a previously calculated Bethe-Salpeter (BS) ker Copy the previous input file for the BSE kernel in a new one:

...optical absorption spectrum of bulk BN within the Bethe-Salpeter equation (BSE) framework for a previously calculated Bethe-Salpeter kernel. You will lear <---> [03] BSE solver(s) @q1

...0 A guided tour through calculations of spectroscopic properties using the BSE approach''' Daniele Varsano (CNR-NANO, Italy), Maurizia Palummo (University '''10:30 - 11:30 Python scripting tools for BSE convergence and analysis ''' Fulvio Paleari (CNR-ISM, Italy), Pedro Melo

...he ''RPA-GW'' level, while the solid curve is obtained solving the ''BSE'' equation, with the inclusion of self-energy, local-fields and electron-hole interact Within first-principles, using the ''GW'' method and the ''BSE'' approaches, have been calculated in the past years [2] and explain the ex

[[File:Deltan equation.png|x30px|frameless|Yambo tutorial image]] ...m over states it is important to converge the number of states used in the equation, this can be controlled via the input variables

...ptions available in Yambo for the numerical solution of the Bethe-Salpeter equation. Before running this tutorial, you should have carried out the tutorial ''' * Back to [[BSE hBN Yambo Virtual 2021 version|BSE tutorial sections]]

...ental step in the calculation of optical spectra within the Bethe-Salpeter equation framework. To solve the Bethe-Salpeter equation, the latter is usually rewritten in the space of transitions between valenc

...approximation. Here we do perform this calculation solving the TDDFT Dyson equation in G space representation: ...diverges so that the evaluation of the term involving the fxc in the Dyson equation cannot be directly calculated in reciprocal space, because the f ALDA is no

# Run the Bethe-Salpter equation for all momementum Q on the same k-grid of the electron-phonon ==BSE at finite momentum==

yambo -opsics bse -V resp -F Input/"0n_filename" Gauge= "length" # [BSE] Gauge (length|velocity). In metals length misses An-Hall

BSE/ SAVE/ bse # [R BSK] Bethe Salpeter Equation.

'''14:00 - 16:30 Bethe-Salpeter equation (BSE)''' Fulvio Paleari (CNR-Nano, Italy), Davide Sangalli (CNR-ISM, Italy) ...ptical spectra including excitonic effects: a step-by-step guide|Perform a BSE calculation from beginning to end ]]

...pole approximation. To address this limitation, we will instead solve the BSE for the equilibrium case and apply corrections to the energy values using a ...m a GW calculation. For more information about solving the Equilibrium BSE equation refer to the following tutorial: [https://wiki.yambo-code.eu/wiki/index.php

This approximation was also called TD-BSE or TD-HSEX in previous papers.<ref name="Attaccalite2011"/> dyson # [R] Dyson Equation solver

-y <opt> :BSE solver [opt=h/d/(p/f)i] -g <opt> :Dyson Equation solver

...of the optical spectrum of a given material by solving the Bethe-Salpeter equation. [[File:Scheme1b.png|500px|center|BSE calculation scheme]]