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Welcome to the web page of Claudio Attaccalite!

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I am a theoretical physicist working in the field of condensed matter theory. My research interests are:

  • Excited states
  • Optical properties
  • Real-time and time-resolved spectroscopy
  • Non-linear optics
  • Quantum Monte Carlo

Recent news

How to transform a CIF file in a QuantumEspresso input


How to transform a CIF file in a QuantumEspresso input

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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


Developing Yambo tutorial is available online

Developing Yambo

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


Self-consistent GW on eigenvalues only with the Yambo code

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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 a single shot GW is not able to correct this error…. Read More