Erratum: Estimation of screening length and electric charge on particles in single-layered dusty plasma crystals [Phys. Rev. E<b>68</b>, 017401 (2003)]

Totsuji, Chieko; Liman, M. Sanusi; Tsuruta, Kenji; Totsuji, Hiroo

doi:10.1103/physreve.68.049901

Cited by 3 publications

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“…Both static and dynamic properties have been investigated including distribution functions, dynamic fluctuation spectra, and dispersion relations of various modes of oscillations [2]. The results are of much interest by themselves and also help us to estimate physical parameters of ambient plasmas in experiments [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Thermodynamics of a two-dimensional Yukawa fluid

et al. 2004

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Thermodynamic quantities of a two-dimensional Yukawa system, a model for various systems including single-layered dust particles observed in dusty plasmas, are obtained and expressed by simple interpolation formulas. In the domain of weak coupling, the analytical method based on the cluster expansion is applied and, in the domain of intermediate and strong coupling, numerical simulations are performed. Due to reduced dimensionality, the treatment based on the mean field fails at the short range and exact behavior of the binary correlation is to be taken into account even in the case of weak coupling.

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Section: Introductionmentioning

confidence: 99%

Thermodynamics of a two-dimensional Yukawa fluid

et al. 2004

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“…This potential is useful for complex systems where the screening exponent of the Yukawa potential models the influence of the surrounding medium Figure 2. Numbers of particles on the shells and energy in ryd (full line) for N = 190 as a function of the correlation factor on the two-particle interaction, e.g., in a dusty plasma [15] and for Coulomb balls [23] and will be discussed elsewhere. In general, i.e., for other than Coulomb potentials, the radii have to be determined numerically from the zeroes of the derivative of the total energy (10), i.e.…”

Section: Evaluation Of the Improved Onion Shell Model (10)mentioning

confidence: 99%

“…7, zooming into the energy scale. Approximations according to (15), asterisks-first three r.h.s terms, full line-full expression. In addition-squares according to the fit formula (19) We now try to fit the results of the shell model to the known analytical schemes using the above asymptotics for large N .…”

Section: Shell Models and Relation To Macroscopic Plasmasmentioning

confidence: 99%

“…In parallel, a large number of theoretical and numerical investigations of Coulomb crystals was performed over the last 15 years, see e.g. [12,13,14,15,16,17,18] and references therein.…”

Section: Introductionmentioning

confidence: 99%

“…In parallel, a large number of theoretical and numerical investigations of Coulomb crystals was performed over the last 15 years, see e.g. [12,13,14,15,16,17,18] and references therein.Meanwhile the experimental methods in many fields have improved essentially allowing to investigate in detail the structure of three-dimensional plasma crystals. Three-dimensional spherical dust crystals were recently observed at room temperature [19], and it was shown by computer simulations that their structure is very well explained by a statically screened Coulomb repulsion together with a constant parabolic confinement [20], in contrast to alternative theoretical models [21,22].…”

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Thermodynamics of a correlated confined plasma II. Mesoscopic system

Kraeft

Bönitz

2006

J. Phys.: Conf. Ser.

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Abstract. Finite systems of charge carriers confined by a harmonic trap are considered. The onion shell model for Coulomb clusters is analyzed and an improved model is proposed which is able to more accurately reproduce the results of numerical experiments. The ground state energy is determined, and the transition to an infinite system is discussed. IntroductionThe investigation of particles in a trap is of high current interest in many fields. Examples are bose condensates of alkali metals, electrons in quantum confined semiconductor structures, e.g. [1,2], ions in Penning and Paul traps, e.g. [3] and dusty plasmas, for an overview see e.g. [4,5,6,7,8]. Intense studies of trapped strongly correlated ions were performed in the last two decades of the previous century demonstrating, in particular the possibility of three-dimensional Coulomb crystals [9,10,11]. In parallel, a large number of theoretical and numerical investigations of Coulomb crystals was performed over the last 15 years, see e.g. [12,13,14,15,16,17,18] and references therein.Meanwhile the experimental methods in many fields have improved essentially allowing to investigate in detail the structure of three-dimensional plasma crystals. Three-dimensional spherical dust crystals were recently observed at room temperature [19], and it was shown by computer simulations that their structure is very well explained by a statically screened Coulomb repulsion together with a constant parabolic confinement [20], in contrast to alternative theoretical models [21,22]. These strongly correlated charged particle systems are a new and intesting kind of plasmas far outside the "normal" parameter range. Here many questions are still open. For completeness, we mention our recent theoretical investigations of the Coulomb crystallization conditions in a two-component plasma [23] and our analysis of macroscopic charged particle systems in traps, see Ref. [24] in this volume.In this paper we will consider finite (mesoscopic) charged particle systems in a trap. In particular we will analyze the total energy. The trap is assumed to be realized by a parabolic potential and confines the particles thereby taking over the role of a neutralizing background which otherwise is needed to compensate the repulsive forces of the charged particles. We consider, thus, a true one component plasma (OCP) in a trap in contrast to the OCP (or jellium) model. Further, we discuss the transition to a macroscopic system.

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