Pros and Cons of the Bethe-Salpeter Formalism for Ground-State Energies.

  title={Pros and Cons of the Bethe-Salpeter Formalism for Ground-State Energies.},
  author={Pierre-Franccois Loos and Anthony Scemama and Ivan Duchemin and Denis Jacquemin and Xavier Blase},
  journal={The journal of physical chemistry letters},
  • Pierre-Franccois Loos, Anthony Scemama, +2 authors Xavier Blase
  • Published 2020
  • Medicine, Chemistry, Physics
  • The journal of physical chemistry letters
  • The combination of the many-body Green's function GW approximation and the Bethe-Salpeter equation (BSE) formalism has shown to be a promising alternative to time-dependent density-functional theory (TD-DFT) for computing vertical transition energies and oscillator strengths in molecular systems. The BSE formalism can also be employed to compute ground-state correlation energies thanks to the adiabatic-connection fluctuation- dissipation theorem (ACFDT). Here, we study the topology of the… CONTINUE READING

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