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相关论文: Instantaneous shear modulus of Yukawa fluids acros…

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In this paper we compare different theoretical approaches to describe the dispersion of collective modes in Yukawa fluids when the inter-particle coupling is relatively weak, so that kinetic and potential contributions to the dispersion…

等离子体物理 · 物理学 2020-09-30 Sergey Khrapak , Lenaic Couedel

There have recently been many predictions of "superdiffusion" in two-dimensional strongly coupled Yukawa systems, both by computer simulations and in dusty plasma experiments, with substantially varying diffusion exponents. Here we show…

等离子体物理 · 物理学 2015-05-14 T. Ott , M. Bonitz

Strongly coupled systems occupying the transitional range between the Wigner crystal and fluid phases are most dynamic constituents of the nature. Highly localized but strongly interacting elements in this phase posses enough thermal energy…

等离子体物理 · 物理学 2023-03-22 Prince Kumar , Devendra Sharma

We point out that the instantaneous shear modulus of the shoving model for the non-Arrhenius temperature dependence of viscous liquids' relaxation time is the experimentally accessible high-frequency plateau modulus, not the idealized…

软凝聚态物质 · 物理学 2012-12-19 Jeppe C. Dyre , Wei Hua Wang

A useful simplification of the quasilocalizded charge approximations (QLCA) method to calculate the dispersion relations in strongly coupled Yukawa fluids is discussed. In this simplified version, a simplest possible model radial…

等离子体物理 · 物理学 2016-02-22 Sergey Khrapak , Boris Klumov , Lenaic Couedel , Hubertus Thomas

Thermodynamics of two-dimensional Yukawa (screened Coulomb or Debye-H\"uckel) systems is studied systematically using molecular dynamics (MD) simulations. Simulations cover very broad parameter range spanning from weakly coupled gaseous…

等离子体物理 · 物理学 2017-04-05 Nikita Kryuchkov , Sergey Khrapak , Stanislav Yurchenko

Spiral wave formations are ubiquitous in nature. In the present paper, the excitation of spiral waves in the context of driven two-dimensional dusty plasma (Yukawa system) has been demonstrated at particle level using molecular dynamics…

等离子体物理 · 物理学 2018-06-13 Sandeep Kumar , Amita Das

In numerous realizations of complex plasmas, dust-dust interactions are characterized by two screening lengths and are thus better described by a combination of Yukawa potentials. The present work investigates the static correlations and…

等离子体物理 · 物理学 2019-05-23 F. Lucco Castello , P. Tolias , J. S. Hansen , J. C. Dyre

The equilibrium structure and the dispersion relations of collective excitations in trilayer Yukawa systems in the strongly coupled liquid regime are examined. The equilibrium correlations reveal a variety of structures in the liquid phase,…

等离子体物理 · 物理学 2020-10-14 Hong Pan , Gabor J. Kalman , Peter Hartmann , Zoltán Donkó

Simple practical approach to estimate thermodynamic properties of strongly coupled Yukawa systems, in both fluid and solid phases, is presented. The accuracy of the approach is tested by extensive comparison with direct computer simulation…

等离子体物理 · 物理学 2015-05-21 Sergey A. Khrapak , Nikita P. Kryuchkov , Stanislav O. Yurchenko , Hubertus M. Thomas

We investigate the interfacial phase behavior of a binary fluid mixture composed of repulsive point Yukawa particles. Using a simple approximation for the Helmholtz free energy functional, which yields the random phase approximation (RPA)…

软凝聚态物质 · 物理学 2009-08-10 Paul Hopkins , Andrew J. Archer , Robert Evans

The present work develops a theoretical procedure for obtaining transport coefficients of Yukawa systems from density fluctuations. The dynamics of Yukawa systems are described in the framework of the generalized hydrodynamic model that…

等离子体物理 · 物理学 2022-09-14 Ankit Dhaka , PV Subhash , P. Bandyopadhyay , A. Sen

We derive an effective coupling parameter for two-dimensional Yukawa systems based on the height of the first maximum of the pair distribution function. Two variants -- one valid in the high-coupling range, the other for arbitrary couplings…

等离子体物理 · 物理学 2011-06-21 T. Ott , M. Bonitz

We propose a simple two-step approximation for the radial distribution function of a one-component two-dimensional Yukawa fluid. This approximation is specified by the key parameters of the system: coupling parameter and screening…

统计力学 · 物理学 2023-03-06 Ilnaz I. Fairushin , Anatolii V. Mokshin

Molecular dynamics simulations of two-dimensional soft Yukawa fluids are performed to analyze the effect that the range of interaction has on coexisting densities and line tension. The attractive one-component fluid and equimolar mixtures…

软凝聚态物质 · 物理学 2012-07-16 G. A. Méndez-Maldonado , M. González-Melchor , J. Alejandre

We extend the discussion of mirror symmetry, Picard-Fuchs equations, instanton-corrected Yukawa couplings, and the topological one-loop partition function to the case of complete intersections with higher-dimensional moduli spaces. We will…

高能物理 - 理论 · 物理学 2009-10-28 S. Hosono , A. Klemm , S. Theisen , Shing-Tung Yau

Thermodynamics of weakly screened (near the one-component-plasma limit) Yukawa fluids in two and three dimensions is analyzed in detail. It is shown that the thermal component of the excess internal energy of these fluids, when expressed in…

等离子体物理 · 物理学 2015-12-17 Sergey A. Khrapak , Igor L. Semenov , Lenaic Couedel , Hubertus M. Thomas

Molecular dynamics simulations have been performed to investigate in detail collective modes spectra of two-dimensional Coulomb fluids in a wide range of coupling. The obtained dispersion relations are compared with theoretical approaches…

等离子体物理 · 物理学 2018-10-11 S. A. Khrapak , N. P. Kryuchkov , L. A. Mistryukova , A. G. Khrapak , S. O. Yurchenko

In dusty (complex) plasmas, containing mesoscopic charged grains, the grain-grain interaction in many cases can be well described through a Yukawa potential. In this Review we summarize the basics of the computational and theoretical…

等离子体物理 · 物理学 2009-11-13 Zoltan Donko , Gabor J. Kalman , Peter Hartmann

The aim of this work is to investigate to what extent the structural properties of a short-range square-well (SW) fluid of range $\lambda$ at a given packing fraction and reduced temperature can be represented by those of a…

统计力学 · 物理学 2007-05-23 Alexandr Malijevsky , Santos B. Yuste , Andres Santos