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  Benchmarking Semiclassical and Perturbative Methods for Real-time Simulations of Cavity-Bound Emission and Interference

Hoffmann, N., Schäfer, C., Säkkinen, N., Rubio, A., Appel, H., & Kelly, A. (2019). Benchmarking Semiclassical and Perturbative Methods for Real-time Simulations of Cavity-Bound Emission and Interference.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-43F7-9 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-43FA-6
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1909.07177.pdf (Preprint), 727KB
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https://arxiv.org/abs/1909.07177 (Preprint)
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 Creators:
Hoffmann, N.1, 2, 3, Author              
Schäfer, C.1, 2, 3, Author              
Säkkinen, N.1, 2, 3, Author              
Rubio, A.1, 2, 3, Author              
Appel, H.1, 2, 3, Author              
Kelly, A.1, 2, 3, 4, Author              
Affiliations:
1Department of Physics, University of hamburg, ou_persistent22              
2Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
3Center for Free-Electron Laser Science, ou_persistent22              
4Department of Chemistry, Dalhousie University, ou_persistent22              

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 Abstract: We benchmark a selection of semiclassical and perturbative dynamics techniques by investigating the correlated evolution of a cavity-bound atomic system to assess their applicability to study problems involving strong light-matter interactions in quantum cavities. The model system of interest features spontaneous emission, interference, and strong coupling behaviour, and necessitates the consideration of vacuum fluctuations and correlated light-matter dynamics. We compare a selection of approximate dynamics approaches including fewest switches surface hopping, multi-trajectory Ehrenfest dynamics, linearized semiclasical dynamics, and partially linearized semiclassical dynamics. Furthermore, investigating self-consistent perturbative methods, we apply the Bogoliubov-Born-Green-Kirkwood-Yvon hierarchy in the second Born approximation. With the exception of fewest switches surface hopping, all methods provide a reasonable level of accuracy for the correlated light-matter dynamics, with most methods lacking the capacity to fully capture interference effects.

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Language(s): eng - English
 Dates: 2019-11-02
 Publication Status: Published online
 Pages: 13
 Publishing info: -
 Table of Contents: -
 Rev. Method: No review
 Identifiers: arXiv: 1909.07177
 Degree: -

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