Image courtesy Weng Hong Sio
EPW is an open-source community code for ab initio calculations of electron-phonon interactions using Density-Functional Perturbation Theory and Maximally Localized Wannier Functions.
EPW is a core module of the Quantum ESPRESSO materials simulation suite.
The EPW Collaboration involves several groups and researchers around the world: H. Lee, C. Lian, J. Leveillee, W. H. Sio, F. Giustino (UT Austin), S. Poncé (EPFL), H. Paudyal, E. R. Margine (SUNY Binghamton), F. Macheda, N. Bonini (Kings College London), X. Zhang, E. Kioupakis (U Michigan Ann Arbor).
The refactoring of EPW toward exascale computing for computational materials design at finite temperatures relevant to designer materials for post-Moore electronics, solar photovoltaics, and energy-efficient lighting is currently supported by the U.S. Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES) under Award DE-SC0020129 (PIs Giustino and Kioupakis). The development of the superconducting module of EPW is currently supported by the U.S. National Science Foundation, under Award OAC-1740263 (PI Margine).