DFT

• Getting started   Learn how to run the code
• Getting started with periodic systems   How to perform some basic calculation using bulk silicon as an example.
• Optical spectra from time-propagation   Absorption spectrum of a molecule from the explicit solution of the time-dependent Kohn-Sham equations: methane
• Basic input options   Obtain the ground state of the nitrogen atom.
• Convergence of the optical spectra   Convergence study of the spectrum with respect to the grid parameters.
• Wires and slabs   Use the flexibility of the real-space grid to treat systems that are periodic in only one or two dimensions.
• Optical spectra from Casida   Calculate the absorption spectrum of methane using Casida's equations
• Parallelization in octopus   Learn about the different strategies.
• Total energy convergence   Make sure that the results are converged
• Band structure unfolding   How to get the bandstructure of a supercell.
• Optical spectra from Sternheimer   Calculate optical spectra in the frequency domain from linear response.
• Visualization   Example: Benzene
• e-H scattering   Electron wave packet scattering on an hydrogen atom
• Triplet excitations   Calculate triplet excitations for methane with time-propagation and Casida methods.
• Use of symmetries in optical spectra from time-propagation   Reduce the number of time-propagations required to compute the absorption cross-section.
• Time-dependent propagation   Time evolution of the density of the methane molecule.
• Magnons   This tutorial gives the basic idea of how it is possible to compute magnons and transverse spin susceptibilities from a real-time calculation using octopus.
• All-electron calculations  
• BerkeleyGW  
• DFT+U   how to add the on-site Hubbard interaction U
• DFT+U+V   how to add the intersite interaction V
• Geometry optimization   Determining the geometry of methane.
• Hybrid functionals   how to use hybrid functionals.
• Large systems: the Fullerene molecule   How to set up calculations for larger systems.
• Self-interaction correction schemes  
• Sternheimer linear response   More details on the Sternheimer approach.
• Transient absorption   how to compute transient absorption.
• Vibrational modes   Obtain vibrational modes by using Sternheimer linear response.

• Getting started   Learn how to run the code