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  Phonon-induced disorder in dynamics of optically pumped metals from nonlinear electron-phonon coupling

Sous, J., Kloss, B., Kennes, D. M., Reichman, D. R., & Millis, A. J. (2021). Phonon-induced disorder in dynamics of optically pumped metals from nonlinear electron-phonon coupling. Nature Communications, 12(1): 5803. doi:10.1038/s41467-021-26030-3.

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https://arxiv.org/abs/2009.00619 (Preprint)
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 Creators:
Sous, J.1, Author
Kloss, B.2, Author
Kennes, D. M.3, 4, 5, Author              
Reichman, D. R.2, Author
Millis, A. J.1, 6, Author
Affiliations:
1Department of Physics, Columbia University, ou_persistent22              
2Department of Chemistry, Columbia University, ou_persistent22              
3Institut für Theorie der Statistischen Physik, RWTH Aachen, and JARA - Fundamentals of Future Information Technology, ou_persistent22              
4Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
5Center for Free-Electron Laser Science, ou_persistent22              
6Center for Computational Quantum Physics, Flatiron Institute, ou_persistent22              

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 Abstract: The non-equilibrium dynamics of matter excited by light may produce electronic phases, such as laser-induced high-transition-temperature superconductivity, that do not exist in equilibrium. Here we simulate the dynamics of a metal driven at initial time by a spatially uniform pump that excites dipole-active vibrational modes which couple nonlinearly to electrons. We provide evidence for rapid loss of spatial coherence, leading to emergent effective disorder in the dynamics, which arises in a system unitarily evolving under a translation-invariant Hamiltonian, and dominates the electronic behavior as the system evolves towards a correlated electron-phonon long-time state, possibly explaining why transient superconductivity is not observed. Our framework provides a basis within which to understand correlation dynamics in current pump-probe experiments of vibrationally coupled electrons, highlight the importance of the evolution of phase coherence, and demonstrate that pumped electron-phonon systems provide a means of realizing dynamically induced disorder in translation-invariant systems.

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Language(s): eng - English
 Dates: 2020-11-232021-08-312021-10-04
 Publication Status: Published online
 Pages: -
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 Rev. Type: Peer
 Identifiers: arXiv: 2009.00619
DOI: 10.1038/s41467-021-26030-3
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Project name : D.M.K. acknowledges support [...] from the Max Planck-New York City Center for Non-Equilibrium Quantum Phenomena.
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Title: Nature Communications
  Abbreviation : Nat. Commun.
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: - Volume / Issue: 12 (1) Sequence Number: 5803 Start / End Page: - Identifier: ISSN: 2041-1723
CoNE: https://pure.mpg.de/cone/journals/resource/2041-1723