Unified view on linear response of interacting identical and distinguishable particles from multiconfigurational time-dependent Hartree methods
Quantum Physics
2014-10-20 v1 Quantum Gases
Abstract
A unified view on linear response of interacting systems utilizing multicongurational 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 (LR-MCTDHB) and identical fermions (LR-MCTDHF), as well for systems of distinguishable particles (LR-MCTDH) are explicitly derived. These linear-response theories provide numerically-exact excitation energies and system's properties, when numerical convergence is achieved in the calculations.
Keywords
Cite
@article{arxiv.1309.1893,
title = {Unified view on linear response of interacting identical and distinguishable particles from multiconfigurational time-dependent Hartree methods},
author = {Ofir E. Alon and Alexej I. Streltsov and Lorenz S. Cederbaum},
journal= {arXiv preprint arXiv:1309.1893},
year = {2014}
}
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51 pages