The dynamic conductivity of strongly non-ideal plasmas: is the Drude model valid?

Adamyan, V. M.; Mihajlov, A. A.; Sakan, N. M.; Srećković, Vladimir A.; Ткаченко, И. М.

doi:10.1088/1751-8113/42/21/214005

Cited by 7 publications

(6 citation statements)

References 16 publications

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“…This metallic character can be further confirmed by checking that the condition (26) is very well satisfied for the values in Table 1. Similar results were obtained recently for real systems in [21]. Fig.…”

Section: Nevanlinna's Parameter Function Qsupporting

confidence: 90%

Optical Properties of Model Moderately Coupled Plasmas

Arkhipov

Askaruly

Baimbetov

et al. 2010

Contrib. Plasma Phys.

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We review our approach to the modelling of optical properties of model moderately coupled plasmas. On the basis of the classical theory of moments the external and internal dynamic conductivities and the reflectivity coefficient of a model hydrogen moderately coupled plasma are determined using all known exact relations and sum rules. The sum rules which are the power frequency moments of the loss function are calculated using the Deutsch effective potential and the hypernetted chain equations. MD simulation data are used and numerical simulations are suggested.

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Section: Nevanlinna's Parameter Function Qsupporting

confidence: 90%

Optical Properties of Model Moderately Coupled Plasmas

Arkhipov

Askaruly

Baimbetov

et al. 2010

Contrib. Plasma Phys.

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“…This expression will be usefull in calculating the dynamical conductivity, in the spirit of [19], in the next section.…”

Section: Collective Modesmentioning

confidence: 99%

Collective modes in free plasmas subjected to a radiation field

Ribeiro

Santos

Amato

et al. 2014

J. Phys.: Conf. Ser.

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In this study we report the effects of an external electromagnetic field on the collective properties of unmagnetized plasmas. The calculations are carried out in the semi-classical approximation, i.e., the electromagnetic field is treated classically and the electrons from a quantum mechanical viewpoint. The results show that the collective modes are damped away smoothly and in a smaller frequency range than those reported by previous studies. An exponential-like decay for the plasmon frequencies as a function of the external field amplitude is readily observed. The results of previous studies are successfully obtained . We also find that the single photon processes has a pronounced effect on the decrease of the frequency range of modulation.

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“…The background. -All further dielectric formalism is based on the classical method of moments [23,24], which allows to express the dielectric function (k, ω) in terms of the already known convergent frequency moments or sum rules. The sum rules to be employed are actually the power frequency moments of the positive loss function (LF)…”

mentioning

confidence: 99%

“…Due to the parity of the LF, all odd-order frequency moments vanish whereas the even-order frequency moments are determined by the static characteristics of the system which, after routine but straightforward calculations, take the following form [23][24][25]:…”

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confidence: 99%

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Stopping of relativistic projectiles in two-component plasmas

Arkhipov¹,

Ashikbayeva²,

Askaruly³

et al. 2013

EPL

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-Relativistic and correlation contributions to the polarizational energy losses of heavy projectiles moving in dense two-component plasmas are analyzed within the method of moments that allows one to reconstruct the Lindhard loss function from its three independently known power frequency moments. The techniques employed result in a thorough separation of the relativistic and correlation corrections to the classical asymptotic form for the polarizational losses obtained by Bethe and Larkin. The above corrections are studied numerically at different values of plasma parameters to show that the relativistic contribution enhances only slightly the corresponding value of the stopping power.Introduction. -Measuring energy losses of charged particles beams is an important diagnostics tool in both modern condensed matter and plasma physics. In 1930 Bethe [1] derived a simplified formula for the stopping power that neatly describes the energy losses of fast projectiles moving in a solid modeled as a system of quantum-mechanical oscillators. Later, Larkin [2] clearly demonstrated that the following analogous formula remains valid for fast ions permeating an electron gas

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The dynamic conductivity of strongly non-ideal plasmas: is the Drude model valid?

Abstract: The method of moments is used to calculate the dynamic conductivity of strongly coupled fully ionized hydrogen plasmas. The electron density ne and temperature T vary in the domains 10 21 < ne < 10 24 cm −3 , 10 4 K < T < 10 6 K. The results are compared to some theoretical data.

Cited by 7 publications

References 16 publications

Optical Properties of Model Moderately Coupled Plasmas

Optical Properties of Model Moderately Coupled Plasmas

Collective modes in free plasmas subjected to a radiation field

Stopping of relativistic projectiles in two-component plasmas

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