Issue |
EPL
Volume 147, Number 3, August 2024
|
|
---|---|---|
Article Number | 36001 | |
Number of page(s) | 7 | |
Section | Condensed matter and materials physics | |
DOI | https://doi.org/10.1209/0295-5075/ad5d88 | |
Published online | 21 August 2024 |
Quantum delocalization, structural order, and density response of the strongly coupled electron liquid
1 Center for Advanced Systems Understanding (CASUS) - D-02826 Görlitz, Germany
2 Helmholtz-Zentrum Dresden-Rossendorf (HZDR) - D-01328 Dresden, Germany
3 Space and Plasma Physics, Royal Institute of Technology (KTH) - Stockholm SE-100 44, Sweden
Received: 19 May 2024
Accepted: 1 July 2024
We investigate the impact of electronic correlations and quantum delocalization onto the static structure factor and static density response function of the strongly coupled electron liquid. In contrast to a classical system, the density response of the electron liquid vanishes on small length scales due to quantum delocalization effects, which we rigorously quantify in terms of imaginary-time correlation functions and dynamic Matsubara response functions. This allows us to analyze the interplay of structural order and dynamic quantum effects as it manifests itself in the dynamic Matsubara local field correction. Finally, we identify an effective electronic attraction in the spin-offdiagonal static density response when the wavelength of the perturbation is commensurate with the average interparticle distance.
© 2024 The author(s)
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