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Correlated electron-nuclear dynamics: Exact factorization of the molecular wavefunction

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Abedi, Ali, Maitra, Neepa T., Gross, E. K. U.·2012·The Journal of Chemical Physics

Abstract

It was recently shown [A. Abedi, N. T. Maitra, and E. K. U. Gross, Phys. Rev. Lett. 105, 123002 (2010)]10.1103/PhysRevLett.105.123002 that the complete wavefunction for a system of electrons and nuclei evolving in a time-dependent external potential can be exactly factorized into an electronic wavefunction and a nuclear wavefunction. The concepts of an exact time-dependent potential energy surface (TDPES) and exact time-dependent vector potential emerge naturally from the formalism. Here, we present a detailed description of the formalism, including a full derivation of the equations that the electronic and nuclear wavefunctions satisfy. We demonstrate the relationship of this exact factorization to the traditional Born-Oppenheimer expansion. A one-dimensional model of the ${\rm H}_2^+$H2+ molecule in a laser field shows the usefulness of the exact TDPES in interpreting coupled electron-nuclear dynamics: we show how features of its structure indicate the mechanism of dissociation. We compare the exact TDPES with potential energy surfaces from the time-dependent Hartree-approach, and also compare traditional Ehrenfest dynamics with Ehrenfest dynamics on the exact TDPES.

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Metadata

Authors
Abedi, A., Maitra, N. T., & Gross, E. K. U.
Venue
The Journal of Chemical Physics
Published
2012-08-27
Volume
137
Issue
22
Pages
22A530-22A530
ISSN
  • 0021-9606 (ISSN-L)
  • 1089-7690
OpenAlex
W2048556244
Cited by
259
References
38
FWCI
4.65
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Correlated electron-nuclear dynamics: Exact factorization of the molecular wavefunction. https://app.cochat.ai/papers/10.1063/1.4745836
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Abedi, A., Maitra, N. T., & Gross, E. K. U. (2012). Correlated electron-nuclear dynamics: Exact factorization of the molecular wavefunction. The Journal of Chemical Physics. https://doi.org/10.1063/1.4745836

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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