The Relevance of Electronic Perturbations in the Warm Dense Electron Gas

Moldabekov, Zhandos; Dornheim, Tobias; Böhme, Maximilian; Vorberger, Jan; Cangi, Attila

doi:10.48550/arxiv.2107.00631

Cited by 1 publication

(3 citation statements)

References 82 publications

(93 reference statements)

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“…In addition, they generalized the Bohm potential to include non-local effects. Very recently, the same authors introduced the concept of many-body Bohm potential and showed how it can be used to improve the accuracy of the quantum fluid description [60].…”

Section: Discussionmentioning

confidence: 99%

“…A recent benchmarking study compared the performances of various commonly used exchange-correlation functionals regarding their ability to describe electronic systems under external harmonic perturbations with different amplitudes and wave-numbers [59]. These functionals can be used in fluid models to extend their validity beyond the mean-field approximation.…”

Section: Quantum Fluid Models Without Spinmentioning

confidence: 99%

“…Instead of adding "spin-dependent" moments to the usual ones as was done above -see Eqs. ( 58), (60), and (62) -Andreev [2] treats separately the spin-up and spin-down components in the corresponding Pauli equation. Performing a Madelung transformation for each component, one arrives at a set of four fluid equations (two continuity and two Euler equations), which are then closed using an appropriate equation of state for the pressure.…”

Section: General Spin Fluid Equationsmentioning

confidence: 99%

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Fluid descriptions of quantum plasmas

Manfredi¹,

Hervieux²,

Hurst³

2021

Preprint

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Quantum fluid (or hydrodynamic) models provide an attractive alternative for the modeling and simulation of the electron dynamics in nanoscale objects. Compared to more standard approaches, such as density functional theory or phase-space methods based on Wigner functions, fluid models require the solution of a small number of equations in ordinary space, implying a lesser computational cost. They are therefore well suited to study systems composed of a very large number of particles, such as large metallic nanoobjects. They can be generalized to include the spin degrees of freedom, as well as semirelativistic effects such as the spin-orbit coupling. Here, we review the basic properties, advantages and limitations of quantum fluid models, and provide some examples of their applications.Keywords Solid-state plasmas • Quantum hydrodynamics • Vlasov and Wigner equations • Nanoplasmonics. Introduction -Fluid models for classical and quantum plasmasRecent decades have witnessed a remarkable surge of interest for the electronic properties of nano-scale objects, particularly when excited by electromagnetic radiation [11,53,54,78]. This is a very vast domain of research that encompasses

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Section: Discussionmentioning

confidence: 99%

Section: Quantum Fluid Models Without Spinmentioning

confidence: 99%