The eT program

eT is an electronic structure program written in the Fortran 2018 standard with focus on coupled cluster and multilevel methods. The program is open source under the GPLv3 license, easy to use, rigorously tested, and optimized for performance.

We are always looking for collaborators. If you wish to contribute, please visit the for developers page on the wiki.

The eT collaboration

eT is primarily developed by research groups at the Norwegian University of Science and Technology in Trondheim, Norway, Scuola Normale Superiore in Pisa, Italy, the Technical University of Denmark in Copenhagen, Denmark and the Univerity of Perugia in Perugia, Italy.

Coordinator

Henrik Koch

Maintainers

Sarai D. Folkestad

Eirik F. Kjønstad

Former maintainers

Rolf H. Myhre

Alexander C. Paul

Contributors

Josefine H. Andersen, Riccardo Alessandro, Sara Angelico, Alice Balbi, Alberto Barlini, Andrea Bianchi, Chiara Cappelli, Matteo Castagnola, Sonia Coriani, Yassir El Moutaoukal, Sarai D. Folkestad, Tommaso Giovannini, Linda Goletto, Edvard D. Hansen, Tor S. Haugland, Daniel Hollas, Anders Hutcheson, Ida-Marie Høyvik, Eirik F. Kjønstad, Henrik Koch, Marcus T. Lexander, Doroteja Lipovec, Torsha Moitra, Rolf H. Myhre, Gioia Marrazzini, Ylva Os, Alexander C. Paul, Regina Paul, Jacob Pedersen, Matteo Rinaldi, Rosario R. Riso, Sander Roet, Enrico Ronca, Federico Rossi, Bendik S. Sannes, Marco Scavino, Anna Kristina Schnack-Petersen, Andreas S. Skeidsvoll, Leo Stoll, Guillaume Thiam, Jan Haakon M. Trabski, and Åsmund H. Tveten

Current funding and support

  • Norwegian University of Science and Technology

  • Scuola Normale Superiore

  • Technical University of Denmark

  • UNINETT Sigma2 – the National Infrastructure for High Performance Computing and Data Storage in Norway

  • Research Council of Norway – FRINATEK, projects 275506, 2017-2023

  • Research Council of Norway – GCmolecule, projects 325574, 2022-2025

  • Independent Research Fund Denmark – Natural sciences, research project 2 no. 7014-00258B, 2018-2023

  • European Research Council – QuantumLight, project nr. 101020016, 2022-2027

  • European Research Council – QED-Spin, project nr. 101040197, 2023-2028

How to cite eT

Please cite the main papers describing the eT releases:

S. D. Folkestad, E. F. Kjønstad, R. H. Myhre, J. H. Andersen, A. Balbi, S. Coriani, T. Giovannini, L. Goletto, T. S. Haugland, A. Hutcheson, I-M. Høyvik, T. Moitra, A. C. Paul, M. Scavino, A. S. Skeidsvoll, Å. H. Tveten, and H. Koch, “eT 1.0: An open source electronic structure program with emphasis on coupled cluster and multilevel methods”, J. Chem. Phys. 152, 184103 (2020), https://doi.org/10.1063/5.0004713

together with the specific publications for the methodologies used - see at the end of the output file.

Contact

Contact us at support@etprogram.org.