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  Light-matter interactions via the exact factorization approach

Hoffmann, N., Appel, H., Rubio, A., & Maitra, N. T. (2018). Light-matter interactions via the exact factorization approach. The European Physical Journal B: Condensend Matter Physics, 91(8): 180. doi:10.1140/epjb/e2018-90177-6.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-B01F-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-AA7D-1
Genre: Journal Article

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https://arxiv.org/abs/1803.02020 (Preprint)
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https://dx.doi.org/10.1140/epjb/e2018-90177-6 (Publisher version)
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 Creators:
Hoffmann, N.1, 2, 3, Author              
Appel, H.1, 2, Author              
Rubio, A.1, 2, 4, Author              
Maitra, N. T.3, 5, Author
Affiliations:
1Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
2Center for Free-Electron Laser Science and Department of Physics, ou_persistent22              
3Department of Physics and Astronomy, Hunter College of the City University of New York, ou_persistent22              
4Center for Computational Quantum Physics, Flatiron Institute, ou_persistent22              
5The Physics Program and the Chemistry Program of the Graduate Center of the City University of New York, ou_persistent22              

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 Abstract: The exact factorization approach, originally developed for electron-nuclear dynamics, is extended to light-matter interactions within the dipole approximation. This allows for a Schrodinger equation for the photonic wavefunction, in which the potential contains exactly the effects on the photon field of its coupling to matter. We illustrate the formalism and potential for a two-level system representing the matter, coupled to an infinite number of photon modes in the Wigner-Weisskopf approximation, as well as a single mode with various coupling strengths. Significant differences are found with the potential used in conventional approaches, especially for strong-couplings. We discuss how our exact factorization approach for light-matter interactions can be used as a guideline to develop semiclassical trajectory methods for efficient simulations of light-matter dynamics.

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Language(s): eng - English
 Dates: 2018-06-012018-03-162018-08-062018-08
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: arXiv: 1803.02020
DOI: 10.1140/epjb/e2018-90177-6
 Degree: -

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Project name : We acknowledge financial support from the European Research Council (ERC-2015-AdG-694097) and European Union’s H2020 programme under GA no. 676580 (NOMAD) (NMH, HA, and AR). Financial support from the US National Science Foundation CHE-1566197 is also gratefully acknowledged (NTM). Open access funding provided by Max Planck Society.
Grant ID : 676580
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)

Source 1

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Title: The European Physical Journal B: Condensend Matter Physics
  Abbreviation : EPJ B
Source Genre: Journal
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Publ. Info: Les Ulis; Heidelberg : EDP Sciences; Springer
Pages: - Volume / Issue: 91 (8) Sequence Number: 180 Start / End Page: - Identifier: ISSN: 1434-6028
CoNE: /journals/resource/954927001233_2