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Institut Néel Group Theory and Simulation of Electronic Properties |
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Institut Néel Group Theory and Simulation of Electronic Properties |
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| HAL : hal-00626220, version 1 |
| arXiv : 1109.2424 |
| DOI : 10.1103/PhysRevB.84.245110 |
| Fiche détaillée |  Récupérer au format |
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| Physical Review B 84, 24 (2011) 245110 |
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| A real-time approach to the optical properties of solids and nano-structures: the time-dependent Bethe-Salpeter equation |
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| Claudio Attaccalite 1M. Grüning |
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| (13/12/2011) |
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| Many-body effects are known to play a crucial role in the electronic and optical properties of solids and nano-structures. Nevertheless the majority of theoretical and numerical approaches able to capture the influence of Coulomb correlations are restricted to the linear response regime. In this work we introduce a novel approach based on a real-time solution of the electronic dynamics.The proposed approach reduces to the well-known Bethe-Salpeter equation in the linear limit regime and it makes possible, at the same time, to investigate correlation effects in nonlinear phenomena. We show the flexibility and numerical stability of the proposed approach by calculating the dielectric constants and the effect of a strong pulse excitation in bulk {\it h}-BN. |
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| 1 : | Institut Néel (NEEL) |
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CNRS : UPR2940 – Université Joseph Fourier - Grenoble I – Institut National Polytechnique de Grenoble (INPG) |
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| Domaine | : | Physique/Matière Condensée/Science des matériaux |
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| Lien vers le texte intégral : |
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| http://fr.arXiv.org/abs/1109.2424 |
| hal-00626220, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00626220 | |
| oai:hal.archives-ouvertes.fr:hal-00626220 | |
| Contributeur : Claudio Attaccalite | |
| Soumis le : Vendredi 23 Septembre 2011, 23:23:41 | |
| Dernière modification le : Vendredi 2 Mars 2012, 08:46:56 | |
