#

Codes


EPIQ: Electron-Phonon Interpolation over k and Q points using Wannier functions


#

We develop and maintain the epiq code. The code was initially written by Matteo Calandra with contributions from Gianni Profeta and Francesco Mauri (M. Calandra et al. Phys. Rev. B 82, 165111 (2010)) The code is now developed by : Giovanni Marini, Guglielmo Marchese, Giulio Volpato, Nathalie Vast, Jelena Sjakste, Francesco Macheda, Francesco Mauri and Matteo Calandra. The reference paper is available here.


XSpectra: Calculation of X-ray absorption spectra


#

We develop and maintain the XSpectra code. The code was initially written by Christos Gougoussis and Matteo Calandra (C. Gougoussis et al. Phys. Rev. B 80, 075102 (2009) ). Oana Bunau implemented the X-ray absorption at the L2,3 edges (O. Bunau and M. Calandra, Phys. Rev. B 87, 205105 (2013)). The code is now distributed within the QUANTUM-ESPRESSO suite.


SSCHA: The Stochastic Self-Consistent Harmonic Approximation


#

This code calculates quantum anharmonic free energiees and Free energy Hessians using the stochastic self-consistent harmonic approximation ( I. Errea, M. Calandra and F. Mauri Phys. Rev. Lett. 111, 177002 (2013)). The last version of the code can be downloaded here.

QUANTUM-ESPRESSO


#

We are active developers of the code.

CRYSTAL


#

We are users of the CRYSTAL code.

We are member of the national center for high performance computing (spoke 7 Materials and Molecules)