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  Nonequilibrium GW+EDMFT: Antiscreening and Inverted Populations from Nonlocal Correlations

Golež, D., Boehnke, L., Strand, H. U. R., Eckstein, M., & Werner, P. (2017). Nonequilibrium GW+EDMFT: Antiscreening and Inverted Populations from Nonlocal Correlations. Physical Review Letters, 118(24): 246402. doi:10.1103/PhysRevLett.118.246402.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-9D92-9 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-8FA4-2
Genre: Journal Article

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PhysRevLett.118.246402.pdf (Publisher version), 566KB
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Available due to APS 'Author Right' 3: "The right to use all or part of the Article, including the APS-prepared version without revision or modification, on the author(s)’ web home page or employer’s website and to make copies of all or part of the Article, including the APS-prepared version without revision or modification, for the author(s)’ and/or the employer’s use for educational or research purposes." - https://journals.aps.org/authors/transfer-of-copyright-agreement
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https://arxiv.org/abs/1702.04952 (Preprint)
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 Creators:
Golež, D.1, Author
Boehnke, L.1, Author
Strand, H. U. R.1, Author
Eckstein, M.2, Author              
Werner, P.1, Author
Affiliations:
1Department of Physics, University of Fribourg, ou_persistent22              
2Theory of Correlated Systems out of Equilibrium, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938296              

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 Abstract: We study the dynamics of screening in photodoped Mott insulators with long-ranged interactions using a nonequilibrium implementation of the GW plus extended dynamical mean-field theory formalism. Our study demonstrates that the complex interplay of the injected carriers with bosonic degrees of freedom (charge fluctuations) can result in long-lived transient states with properties that are distinctly different from those of thermal equilibrium states. Systems with strong nonlocal interactions are found to exhibit a self-sustained population inversion of the doublons and holes. This population inversion leads to low-energy antiscreening which can be detected in time-resolved electron-energy-loss spectra.

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Language(s): eng - English
 Dates: 2017-02-162017-06-152017-06-15
 Publication Status: Published in print
 Pages: -
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 Rev. Method: Peer
 Identifiers: DOI: 10.1103/PhysRevLett.118.246402
arXiv: 1702.04952
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Project name : The calculations have been performed on the Beo04 cluster at the University of Fribourg. D. G., L. B., H. U. R. S., and P. W. have been supported by European Research Council (ERC) Starting Grant No. 278023 and ERC Consolidator Grant No. 724103, and the Swiss National Science Foundation through NCCR MARVEL and Grant No. 200021-165539. M. E. acknowledges support by the Deutsche Forschungsgemeinschaft within the Sonderforschungsbereich 925 (Project No. B4).
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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 118 (24) Sequence Number: 246402 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: /journals/resource/954925433406_1