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Welcome!

Welcome to the manual of the BerkeleyGW code, a free, open source, and massively parallel computational package for electron excited-state properties that is based on the many-body perturbation theory employing the ab initio GW and GW plus Bethe-Salpeter equation methodology.

Use the menu on the left to navigate over the different components of the code, or click here to start with an overview.

Make sure to also read other documentation resources such as tutorial slides and examples. If you still have questions that were not answered here, or if you found a problem in the code, you can also send a question to the BerkeleyGW help forum.