Dispersion and lineshape of plasmon satellites in one, two and three dimensions

Abstract

Using state-of-the-art many-body Green's function calculations based on the "GW plus cumulant" approach, we analyze the properties of plasmon satellites in the electron spectral function resulting from electron-plasmon interactions in one-, two- and three-dimensional systems. Specifically, we show how their dispersion relation, lineshape and linewidth are related to the properties of the constituent electrons and plasmons. To gain insight into the many-body processes giving rise to the formation of plasmon satellites, we connect the "GW plus cumulant" approach to a many-body wavefunction picture of electron-plasmon interactions and introduce the coupling-strength weighted electron-plasmon joint-density states as a powerful concept for understanding plasmon satellites.

6 papers, 2 figures

References in corpus (5)

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Cited by in corpus (13)

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• Cumulant Green's function calculations of plasmon satellites in bulk sodium: influence of screening and the crystal environment
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• Vertex corrections for positive-definite spectral functions of simple metals
• One-electron spectra and susceptibilities of 3D electron gas from self-consistent solutions of Hedin's equations
• Lifetime effects and satellites in the photoelectron spectrum of tungsten metal
• Quasiparticle spectra from molecules to bulk
• Cumulant expansion in the Holstein model: Spectral functions and mobility
• Description of quasiparticle and satellite properties via cumulant expansions of the retarded one-particle Green's function
• Probing collective oscillation of $d$-orbital electrons at the nanoscale
• Dynamic correlations in the highly dilute 2D electron liquid: loss function, critical wave vector and analytic plasmon dispersion
• Model dielectric functions for fluctuation potential calculations in electron gas: a critical assessment
• Many-body Green's function approaches to the doped Fröhlich solid: Exact solutions and anomalous mass enhancement