Author Archives: attacc

How to transform a CIF file in a QuantumEspresso input

When you work with experimentalists, often you have to deal with atomic structures reconstructed from x-ray scattering in the format of CIF files. Here I briefly explain how to transform these files in a QuantumEspresso input using Mercury code. Open the CIF file with Mercury then follow the points below: 1) remove the duplicated atoms, … Read More

Developing Yambo tutorial is available online

My new tutorial on “Developing Yambo” is available online. This was possible thanks to the work of Myrta Gruning and Davide Sangalli that updated the tutorial to the last version of the code and completed some unfinished parts.  In this tutorial we explain how to introduce new functionalities in the Yambo code. As example, inspired… Read More

Self-consistent GW on eigenvalues only with the Yambo code

Not working anymore in Yambo 4.5 but works in Yambo 5.x For molecules and also for molecular solids, the G0W0 approach often gives poor results. The main reason of this failure is  the DFT  starting point. In fact local or semi-local exchange correlation functionals give a too small gap compared with the experimental one, and… Read More

FIESTA: French Initiative for Electronic Simulations with Thousands of Atoms

My new poster for the GBB60 conference is online, FIESTA: French Initiative for Electronic Simulations with Thousands of Atoms. The poster is about a GW and Bethe-Salpeter code developed in Grenoble that uses Gaussian bases and resolution-of-the-identity techniques. For more info in the code see the Fiesta web page: http://perso.neel.cnrs.fr/xavier.blase/fiesta/ See you in Rome.

GDR REST

I participate to the research group GDR REST (REncontres de Spectroscopie Theorique). Our project aims to bring together different communities of theoretical spectroscopy in order to establish the state-of-the-art approaches on the market, share knowledge, identify important issues and unresolved problems, and indicate future directions.There are several approaches to the study of elementary excitations, the… Read More

Non­Linear Optics and Nanoplasmonics Symposia at the Psi-k conference

This year I organize the “Non­Linear Optics of Materials and Nanoplasmonics Symposia” at the PSI-K conference in San Sebastian, together with Myrta Grüning and Valerie Veniard. We selected the following people as invited speakers: Stefano Corni, FJ Vidal and Pablo García, Alberto Castro, Stefano Ossicini and Kazuhiro Yabana. I invite all people interested in non-linear optics… Read More

Rejected ANR projects

Since I’m in France, I submitted different projects to the ANR and other funding agencies, and I must say, with little success. In this post I decided to publish and share some of these projects that have not been accepted. I hope they could serve as  a model to other researchers, or perhaps as an… Read More