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Linear and Nonlinear Optical Properties of Molecules from Real-Time Propagation Based on the Bethe–Salpeter Equation

URN to cite this document:
urn:nbn:de:bvb:355-epub-779678
DOI to cite this document:
10.5283/epub.77967
Marek, Štěpán ; Wilhelm, Jan
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Date of publication of this fulltext: 15 Oct 2025 13:23




Abstract

We present a real-time propagation method for computing linear and nonlinear optical properties of molecules based on the Bethe–Salpeter equation. The method follows the time evolution of the one-particle density matrix under an external electric field. We include electron–electron interaction effects through a self-energy model based on the screened exchange approximation. Quasiparticle energies ...

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