Towards a Quantum Fluid Theory of Correlated Many-Fermion Systems from First Principles
Towards a Quantum Fluid Theory of Correlated Many-Fermion Systems from First Principles
Moldabekov, Z.; Dornheim, T.; Gregori, G.; Graziani, F.; Bonitz, M.; Cangi, A.
Abstract
Correlated many-fermion systems emerge in a broad range of phenomena in warm dense matter, plasmonics, and ultracold atoms. Quantum hydrodynamics (QHD) complements first-principles methods for many-fermion systems at larger scales. We illustrate the failure of the standard Bohm potential central to QHD for strong perturbations when the density perturbation is larger than about 10−3 of the mean density. We then extend QHD to this regime via the many-fermion Bohm potential from first-principles. This may lead to more accurate QHD simulations beyond their common application domain in the presence of strong perturbations at scales unattainable with first-principles methods.
Keywords: warm dense matter; Condensed Matter Physics - Computational
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Data publication: Towards a Quantum Fluid Theory of Correlated Many-Fermion …
ROBIS: 33723 HZDR-primary research data are used by this (Id 33702) publication
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SciPost Physics 12(2022)2, 062
DOI: 10.21468/SciPostPhys.12.2.062
Cited 14 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-33702