Main menu

HomeNewsPeopleDownloadYambo-pyRun the codeInput fileTutorialsDocumentation
Main Features Lecture Notes FAQ
PublicationsEventsContactsTest-Suite Forum

The Wikipedia Page of Yambo Yambo@Wiki

Fortran cafe The Fortran Cafe'

Bethe-Salpeter wine The Bethe-Salpeter-Equation (BSE) wine

A street entitled to Yambo in Rome
A bar entitled to Yambo in Rome
A bar entitled to Yambo in Rome Yambo road, bar & restaurant

The Exchange self-energy

The xxvxc runlevel calculates the matrix elements of the xc potential (corresponding to the one used in the Ground state calculation), and of the exchange self-energy. These matrix elements are used in the gowo runlevel to calculate the quasiparticle corrections.The exchange self-energy is defined as

which yields

The maximum vector in the reciprocal space used in the summation is EXXRLvcs while the bands summation can be started from SxLowBnd . QPkrange (or alternatively QPErange ) selects the matrix elements (both exchange self-energy and xc potential) to calculate. For the details on the integration in the BZ of the RL and on the treatment of the divergence of the Coulomb interaction refer to RIM.