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The properties of hydrogen at warm dense matter (WDM) conditions are of high importance for the understanding of astrophysical objects and technological applications such as inertial confinement fusion. In this work, we present extensive…

等离子体物理 · 物理学 2023-06-12 Tobias Dornheim , Maximilian Böhme , Zhandos Moldabekov , Jan Vorberger

A fluid model is developed for multicomponent two-temperature magnetized plasmas in chemical non-equilibrium from the partially- to fully-ionized collisional regimes. We focus on transport phenomena aiming at representing the chromosphere…

We examine the equilibrium properties of hot, dilute, non-relativistic plasmas. The partition function and density correlation functions of a classical plasma with several species are expressed in terms of a functional integral over…

等离子体物理 · 物理学 2009-10-31 Lowell S. Brown , Laurence G. Yaffe

The effects of radiation on the structure of shocks in a fully-ionized plasma are investigated by solving the steady-state fluid equations for ions, electrons, and radiation. The electrons and ions are assumed to have the same bulk velocity…

高能天体物理现象 · 物理学 2016-03-28 Bryan M. Johnson , Richard I. Klein

This article reviews two currently available analytic models of the dielectric function of a plasma consisting of quantum particles interacting via Coulomb forces, namely the Random Phase Approximation (RPA) and the Standard (Simple)…

等离子体物理 · 物理学 2015-08-25 Basil Crowley

We introduce a method for calculating the dielectric function of nanostructures with an arbitrary band dispersion and Bloch wave functions. The linear response of a dissipative electronic system to an external electromagnetic field is…

介观与纳米尺度物理 · 物理学 2016-06-07 F. Karimi , A. H. Davoody , I. Knezevic

Ab initio calculation of dielectric response with high-accuracy electronic structure methods is a long-standing problem, for which mean-field approaches are widely used and electron correlations are mostly treated via approximated…

化学物理 · 物理学 2024-06-25 Xiang Li , Yubing Qian , Ji Chen

Graphene is a valuable 2D platform for plasmonics as illustrated in recent THz and mid-infrared optics experiments. These high-energy plasmons however, couple to the dielectric surface modes giving rise to hybrid plasmon-polariton…

介观与纳米尺度物理 · 物理学 2019-01-08 H. Graef , D. Mele , M. Rosticher , C. Stampfer , T. Taniguchi , K. Watanabe , E. Bocquillon , G. Fève , J-M. Berroir , E. H. T. Teo , B. Plaçais

The two-dimensional one-component plasma ---2dOCP--- is a system composed by $n$ mobile particles with charge $q$ over a neutralizing background in a two-dimensional surface. The Boltzmann factor of this system, at temperature $T$, takes…

统计力学 · 物理学 2016-05-09 Johnny Alejandro Mora Grimaldo , Gabriel Tellez

In this study we report our numerical results on finite temperature non-interacting dynamical polarization function, plasmon modes and electron energy loss function of doped single layer gapped graphene within the random phase…

介观与纳米尺度物理 · 物理学 2015-04-07 Digish K. Patel , Syed S. Z. Ashraf , Ami C. Sharma

We report on a theoretical derivation of the electronic dielectric response of semiconductor nanocrystals using a tight-binding framework. Extending to the nanoscale the Hanke and Sham approach [Phys. Rev. B 12, 4501 (1975)] developed for…

材料科学 · 物理学 2011-11-09 F. Trani , D. Ninno , G. Iadonisi

The magneto-optical activity, namely the polarization conversion capabilities of high-index, non-absorbing, core-shell dielectric nanospheres is theoretically analyzed. We show that, in analogy with their plasmonic counterparts, the…

介观与纳米尺度物理 · 物理学 2016-05-20 N. de Sousa , L. S. Froufe-Pérez , J. J. Sáenz , A. García-Martín

The model under consideration is a two-dimensional two-component plasma, i.e., a continuous system of two species of pointlike particles of opposite charges $\pm 1$, interacting through the logarithmic Coulomb interaction. Using the exact…

统计力学 · 物理学 2007-05-23 L. Šamaj , B. Jancovici

Fermi Dirac free electron model is applied to very dense plasmas with medium or low temperatures. While Boltzmann statistics can lead to very high densities of ionized electrons, only at very high temperatures, Fermi Dirac statistics can…

等离子体物理 · 物理学 2018-05-03 Y. Ben-Aryeh

The stopping power and energy loss rate of charged particles traversing a two-dimensional Dirac plasma is investigated. The Dirac plasma considered here models a solid state system, recently realized graphene monolayer, where the conduction…

介观与纳米尺度物理 · 物理学 2008-08-26 Aqsa Arshad , Kashif Sabeeh , M. Tahir

We validate the application of our recent orbital-free density functional theory (DFT) approach, [Phys. Rev. Lett. 113, 155006 (2014)], for the calculation of ionic and electronic transport properties of dense plasmas. To this end, we…

等离子体物理 · 物理学 2015-12-16 Travis Sjostrom , Jérôme Daligault

We combine ab initio simulations and Raman scattering measurements to demonstrate explicit anharmonic effects in the temperature dependent dielectric response of a NaCl single crystal. We measure the temperature evolution of its Raman…

材料科学 · 物理学 2022-08-11 Nimrod Benshalom , Guy Reuveni , Roman Korobko , Omer Yaffe , Olle Hellman

We investigate the density and optical responses of a linear triple component fermionic system in both non-interacting and interacting regimes by computing its dynamical polarization function, RPA dielectric function, plasmon mode and long…

介观与纳米尺度物理 · 物理学 2022-04-20 Bashab Dey , Tarun Kanti Ghosh

Dielectric permeability of the degenerate electronic gas for the collisional plasmas is found. The kinetic equation of Wigner -- Vlasov -- Boltzmann with integral of collisions in relaxation form in coordinate space is used. We will notice…

数学物理 · 物理学 2010-01-25 Anatoly V. Latyshev , Alexander Yushkanov

We develop a dielectric matrix and analyze plasmon dispersion in strongly coupled charged-particle bilayers in the quantum domain. The formulation is based on the classical quasi-localized charge approximation (QLCA) and extends the QLCA…

其他凝聚态物理 · 物理学 2009-11-10 Kenneth I. Golden , Hania Mahassen , Gabor J. Kalman , Gaetano Senatore , F. Rapisarda