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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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
16 January 2014
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| In: |
The journal of chemical physics
Year: 2014, Volume: 140, Issue: 3 |
| ISSN: | 1089-7690 |
| DOI: | 10.1063/1.4860970 |
| Online Access: | 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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| Author Notes: | Ofir E. Alon, Alexej I. Streltsov, and Lorenz S. Cederbaum |
| Summary: | 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. |
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| Item Description: | Gesehen am 13.10.2020 |
| Physical Description: | Online Resource |
| ISSN: | 1089-7690 |
| DOI: | 10.1063/1.4860970 |