Unified view on linear response of interacting identical and distinguishable particles from multiconfigurational time-dependent Hartree methods

A unified view on linear response of interacting systems utilizing multiconfigurational time-dependent Hartree methods is presented. The cases of one-particle and two-particle response operators for identical particles and up to all-system response operators for distinguishable degrees-of-freedom ar...

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Hauptverfasser: Alon, Ofir E. (VerfasserIn) , Streltsov, Alexej Iwanowitsch (VerfasserIn) , Cederbaum, Lorenz S. (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 16 January 2014
In: The journal of chemical physics
Year: 2014, Jahrgang: 140, Heft: 3
ISSN:1089-7690
DOI:10.1063/1.4860970
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1063/1.4860970
Verlag, lizenzpflichtig, Volltext: https://aip.scitation.org/doi/10.1063/1.4860970
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Verfasserangaben:Ofir E. Alon, Alexej I. Streltsov, and Lorenz S. Cederbaum
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Zusammenfassung:A unified view on linear response of interacting systems utilizing multiconfigurational time-dependent Hartree methods is presented. The cases of one-particle and two-particle response operators for identical particles and up to all-system response operators for distinguishable degrees-of-freedom are considered. The working equations for systems of identical bosons and identical fermions, as well for systems of distinguishable particles are explicitly derived. These linear-response theories - applicable for discrete excitation spectra - provide numerically exact excitation energies and system's properties, when numerical convergence is achieved in the calculations.
Beschreibung:Gesehen am 13.10.2020
Beschreibung:Online Resource
ISSN:1089-7690
DOI:10.1063/1.4860970