Implementation of the Bethe−Salpeter equation in the TURBOMOLE program
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Computational Chemistry"
DOI: 10.1002/jcc.24688
Abstract: A software update solving the Bethe−Salpeter equation (BSE) is reported for the ESCF module of the TURBOMOLE program for the theoretical description of electronically excited states of atoms and molecules. A resolution‐of‐the‐identity (RI) approximation is… read more here.
Keywords: equation; salpeter equation; bethe salpeter; turbomole program ... See more keywords
Abnormal Solutions of Bethe–Salpeter Equation with Massless and Massive Exchanges
Sign Up to like & getrecommendations! Published in 2024 at "Few-Body Systems"
DOI: 10.1007/s00601-024-01928-y
Abstract: We summarize the main properties of the so called “abnormal solutions” of the Wick–Cutkosky model, i.e. two massive scalar particles interacting via massless scalar exchange (“photons”), within the Bethe–Salpeter equation. These solutions do not exist… read more here.
Keywords: bethe salpeter; massless; abnormal solutions; salpeter equation ... See more keywords
Time-Resolved Excited-State Analysis of Molecular Electron Dynamics by TDDFT and Bethe–Salpeter Equation Formalisms
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Chemical Theory and Computation"
DOI: 10.1021/acs.jctc.1c00211
Abstract: In this work, a theoretical and computational set of tools to study and analyze time-resolved electron dynamics in molecules, under the influence of one or more external pulses, is presented. By coupling electronic-structure methods with… read more here.
Keywords: electron dynamics; time; time resolved; bethe salpeter ... See more keywords
NMR Coupling Constants Based on the Bethe-Salpeter Equation in the GW Approximation.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of chemical theory and computation"
DOI: 10.1021/acs.jctc.1c00999
Abstract: We present the first steps to extend the Green's function GW method and the Bethe-Salpeter equation (BSE) to molecular response properties such as nuclear magnetic resonance (NMR) indirect spin-spin coupling constants. We discuss both a… read more here.
Keywords: coupling constants; bethe salpeter; approximation; salpeter equation ... See more keywords
GPU-Accelerated Solution of the Bethe-Salpeter Equation for Large and Heterogeneous Systems.
Sign Up to like & getrecommendations! Published in 2024 at "Journal of chemical theory and computation"
DOI: 10.1021/acs.jctc.4c01253
Abstract: We present a massively parallel GPU-accelerated implementation of the Bethe-Salpeter equation (BSE) for the calculation of the vertical excitation energies (VEEs) and optical absorption spectra of condensed and molecular systems, starting from single-particle eigenvalues and… read more here.
Keywords: bethe salpeter; gpu accelerated; salpeter equation;
The Bethe-Salpeter equation in chemistry: relations with TD-DFT, applications and challenges.
Sign Up to like & getrecommendations! Published in 2018 at "Chemical Society reviews"
DOI: 10.1039/c7cs00049a
Abstract: We review the many-body Green's function Bethe-Salpeter equation (BSE) formalism that is rapidly gaining importance for the study of the optical properties of molecular organic systems. We emphasize in particular its similarities and differences with… read more here.
Keywords: chemistry; chemistry relations; bethe salpeter; salpeter equation ... See more keywords
Quasirelativistic two-component core excitations and polarisabilities from a damped-response formulation of the Bethe–Salpeter equation
Sign Up to like & getrecommendations! Published in 2020 at "Molecular Physics"
DOI: 10.1080/00268976.2020.1755064
Abstract: A damped-response formalism in the GW approximation to the Bethe–Salpeter equation (BSE) is presented and implemented. It is based on a quasirelativistic two-component (2c) approach that includes scalar-relativistic and spin–orbit effects derived from the one-electron… read more here.
Keywords: quasirelativistic two; response; damped response; bethe salpeter ... See more keywords
How to choose efficiently the size of the Bethe-Salpeter equation Hamiltonian for accurate exciton calculations on supercells
Sign Up to like & getrecommendations! Published in 2025 at "Physical Review B"
DOI: 10.1103/dg13-y4kj
Abstract: The Bethe-Salpeter Equation (BSE) is the workhorse method to study excitons in materials. The BSE Hamiltonian size, which depends on how many valence-to-conduction band transitions are considered, needs to be chosen to be sufficiently large… read more here.
Keywords: number; salpeter equation; bse hamiltonian; bethe salpeter ... See more keywords
Bethe-Salpeter equation approach with electron-phonon coupling for exciton binding energies
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.103.075201
Abstract: We introduce a simple scheme in order to account for the coupling with longitudinal phonons within the first-principles Bethe-Salpeter approach based on many-body perturbation theory. This allows one to evaluate the reduction of exciton binding… read more here.
Keywords: electron phonon; bethe salpeter; approach; binding energies ... See more keywords
Solving the Bethe-Salpeter equation for the second-harmonic generation in Zn chalcogenides
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.235206
Abstract: The influence of excitonic and local-field effects on the second-harmonic-generation spectrum of zinc-blende ZnS, ZnSe, and ZnTe is studied from first principles using the Bethe-Salpeter equation. The calculations are based on the theory of R.… read more here.
Keywords: second harmonic; harmonic generation; salpeter equation; bethe salpeter ... See more keywords
Quark anomalous magnetic moment and its effects on the ρ meson properties
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review D"
DOI: 10.1103/physrevd.104.054038
Abstract: A symmetry-preserving treatment of mesons, within a Dyson-Schwinger and Bethe-Salpeter equations approach, demands an interconnection between the kernels of the quark gap equation and meson Bethe-Salpeter equation. Appealing to those symmetries expressed by the vector… read more here.
Keywords: magnetic moment; bethe salpeter; meson; quark anomalous ... See more keywords