Work

Exact series expansion for even frequency moments of the dynamic structure factor

Year: 2025

Type: article

Abstract: An exact series representation of the even frequency moments of the dynamic structure factor is derived. Truncations are proposed that allow to evaluate the explicitly unknown second, fourth, and fifth frequency moments for the finite temperature uniform electron gas. Their applicability range in terms of degeneracy parameter and wavenumber is determined by exploiting the non-interacting limit and by comparing with the quasi-exact results of path integral Monte Carlo simulations.

Source: Physics of Plasmas

DOI: 10.1063/5.0284989

Authors: Panagiotis Tolias, Jan Vorberger, Tobias Dornheim

Institutions: KTH Royal Institute of Technology, Helmholtz-Zentrum Dresden-Rossendorf, Center for Advanced Systems Understanding

Language: English

Topic: Dust and Plasma Wave Phenomena

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: Norddeutscher Verbund für Hoch- und Höchstleistungsrechnen, European Commission, Bundesministerium für Bildung und Forschung, HORIZON EUROPE European Research Council

Awards: G1507619328, Center for Advanced Systems Understanding (CASUS), Predicting the Extreme, G5656578139