Welcome to the Bethe-Salpeter equation website

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Version 3.2 available
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The new version of EXC is available. In particular the finite momentum transfer has been implemented.

New Release: v3.1
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A new version of the code has been released: v3.1. Few changes and some bug corrections for this intermediate release.

New Release v3.0
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A new version of the code has been released: v3.0.

Theoretical Spectroscopy Lectures
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Electronic excitations are probed by experimental techniques such as optical absorption, EELS and photo-emission (direct or inverse).

Cecam School on Theoretical Spectroscopy
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Theoretical Spectroscopy Lectures: Theory and Codes