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773 B
| title | chunk | source | category | tags | date_saved | instance |
|---|---|---|---|---|---|---|
| EXC code | 1/1 | https://en.wikipedia.org/wiki/EXC_code | reference | science, encyclopedia | 2026-05-05T12:14:53.087091+00:00 | kb-cron |
EXC is a condensed matter physics many-body theory software package implementing the Bethe–Salpeter equation in frequency-reciprocal space and on a plane wave basis set. Its purpose is to calculate, ab initio, dielectric and optical properties, like absorption, reflectivity, refraction index, electron and X-ray energy loss, for a large variety of systems, ranging from bulk systems, surfaces, to clusters or atoms. It is distributed under the GNU/GPL license.
== See also == ABINIT DP code YAMBO code PWscf Quantum chemistry computer programs
== References ==