1.4 Terms of use
Keywords: user_guide

Next: 2 Installation Up: 1 Introduction Previous: 1.3 Guidelines for posting Contents

##
1.4 Terms of use

QUANTUM ESPRESSO is free software, released under the GNU General Public License. See `http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt`, or the file License in the distribution).

We shall greatly appreciate if scientific work done using QUANTUM ESPRESSO distribution will contain an explicit acknowledgment and the following reference:

> P. Giannozzi, S. Baroni, N. Bonini, M. Calandra, R. Car, C. Cavazzoni, D. Ceresoli, G. L. Chiarotti, M. Cococcioni, I. Dabo, A. Dal Corso, S. Fabris, G. Fratesi, S. de Gironcoli, R. Gebauer, U. Gerstmann, C. Gougoussis, A. Kokalj, M. Lazzeri, L. Martin-Samos, N. Marzari, F. Mauri, R. Mazzarello, S. Paolini, A. Pasquarello, L. Paulatto, C. Sbraccia, S. Scandolo, G. Sclauzero, A. P. Seitsonen, A. Smogunov, P. Umari, R. M. Wentzcovitch, J.Phys.:Condens.Matter 21, 395502 (2009), http://arxiv.org/abs/0906.2569

Note the form QUANTUM ESPRESSO for textual citations of the code. Please also see package-specific documentation for further recommended citations. Pseudopotentials should be cited as (for instance)

> [ ] We used the pseudopotentials C.pbe-rrjkus.UPF and O.pbe-vbc.UPF from
> `http://www.quantum-espresso.org`.