Solving the Kadanoff-Baym equations for inhomogenous systems: Application to atoms and molecules

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We have implemented time-propagation of the non-equilibrium Green function for atoms and molecules, by solving the Kadanoff-Baym equations within a conserving self-energy approximation. We here demonstrate the usefulnes of time-propagation for calculating spectral functions and for describing the correlated electron dynamics in a non-perturbative electric field. We also demonstrate the use of time-propagation as a method for calculating charge-neutral excitation energies, equivalent to highly advanced solutions of the Bethe-Salpeter equation.
4 pages, 5 figures

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Materials Science, Strongly Correlated Electrons

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http://salesiana.dossiersoluciones.com/handle/123456789/125725

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0703411
 http://arxiv.org/abs/cond-mat/0703411

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arXiv