Observations of Plasmons in Warm Dense Matter

Glenzer, S. H.; Landen, O. L.; Neumayer, P.; Lee, R. W.; Widmann, K.; Pollaine, S. M.; Wallace, R. J.; Gregori, G.; Höll, A.; Bornath, Th.; Thiele, R.; Schwarz, V.; Kraeft, W. D.; Redmer, R.

doi:10.1103/physrevlett.98.065002

Cited by 463 publications

(289 citation statements)

References 30 publications

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“…It is well-known, see [2,3,4], that the experimental Thomson scattering cross section is related to the dynamic structure factor of all electrons in the plasma according to…”

Section: A Thomson Scattering and Born-mermin Approachmentioning

confidence: 99%

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Influence of local-field corrections on Thomson scattering in collision-dominated two-component plasmas

2010

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Thomson scattering in non-ideal (collision-dominated) two-component plasmas is calculated accounting for electron-ion collisions as well as electron-electron correlations. This is achieved by using a novel interpolation scheme for the electron-electron response function generalizing the traditional Mermin approach. Also, ions are treated as randomly distributed inert scattering centers. The collision frequency is taken as a dynamic and complex quantity and is calculated from a microscopic quantum-statistical approach. Implications due to different approximations for the electron-electron correlation, i.e. different forms of the OCP local field correction, are discussed.

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“…It is well-known, see [2,3,4], that the experimental Thomson scattering cross section is related to the dynamic structure factor of all electrons in the plasma according to…”

Section: A Thomson Scattering and Born-mermin Approachmentioning

confidence: 99%

“…Recently, Thomson scattering has been established as a diagnostic tool for high energy laser-matter interaction in particular for warm dense matter [1,2,3,4]. The Thomson signal probes the dynamic structure factor of the plasma [5].…”

Section: Introductionmentioning

confidence: 99%

Influence of local-field corrections on Thomson scattering in collision-dominated two-component plasmas

2010

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“…The implosion proton source was timed so that the proton probing occurs at 1.4 ns after the onset of the heating beams, at which time electrostatic charging [29,37] of the subject target is negligible [38]. The x-ray isochoric-heating technique used in this work has been used extensively at OMEGA for dense plasma physics studies [36,[39][40][41]. The subject target used here mimics the previous experiments [42].…”

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confidence: 99%

Measurement of Charged-Particle Stopping in Warm Dense Plasma

et al. 2015

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We measured the stopping of energetic protons in an isochorically heated solid-density Be plasma with an electron temperature of ∼32 eV, corresponding to moderately coupled ½ðe 2 =aÞ=ðk B T e þ E F Þ ∼ 0.3 and moderately degenerate ½k B T e =E F ∼ 2 "warm-dense matter" (WDM) conditions. We present the first highaccuracy measurements of charged-particle energy loss through dense plasma, which shows an increased loss relative to cold matter, consistent with a reduced mean ionization potential. The data agree with stopping models based on an ad hoc treatment of free and bound electrons, as well as the average-atom local-density approximation; this work is the first test of these theories in WDM plasma.

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“…The study of ion-acoustic waves has also gained importance in quantum plasmas for understanding electrostatic wave propagation in microscopic scales. During the last decade, there has been renewed interest in study of the collective wave phenomenon in quantum plasma, motivated by applications in semiconductors [1], high-intensity laser-plasma experiments [2][3][4], and highdensity astrophysical plasmas such as in the interior of massive planets and white dwarfs, neutron stars, or magnetars [5][6][7]. Quantum or degeneracy effects appear in plasmas when the de Broglie wavelength associated with the charged carriers becomes of the order of the interparticle distances.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear ion-acoustic solitons in a magnetized quantum plasma with arbitrary degeneracy of electrons

Haas

Mahmood

2016

Phys. Rev. E

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Nonlinear ion-acoustic waves are analyzed in a nonrelativistic magnetized quantum plasma with arbitrary degeneracy of electrons. Quantum statistics is taken into account by means of the equation of state for ideal fermions at arbitrary temperature. Quantum diffraction is described by a modified Bohm potential consistent with finite-temperature quantum kinetic theory in the long-wavelength limit. The dispersion relation of the obliquely propagating electrostatic waves in magnetized quantum plasma with arbitrary degeneracy of electrons is obtained. Using the reductive perturbation method, the corresponding Zakharov-Kuznetsov equation is derived, describing obliquely propagating two-dimensional ion-acoustic solitons in a magnetized quantum plasma with degenerate electrons having an arbitrary electron temperature. It is found that in the dilute plasma case only electrostatic potential hump structures are possible, while in dense quantum plasma, in principle, both hump and dip soliton structures are obtainable, depending on the electron plasma density and its temperature. The results are validated by comparison with the quantum hydrodynamic model including electron inertia and magnetization effects. Suitable physical parameters for observations are identified.

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Observations of Plasmons in Warm Dense Matter

Cited by 463 publications

References 30 publications

Influence of local-field corrections on Thomson scattering in collision-dominated two-component plasmas

Influence of local-field corrections on Thomson scattering in collision-dominated two-component plasmas

Measurement of Charged-Particle Stopping in Warm Dense Plasma

Nonlinear ion-acoustic solitons in a magnetized quantum plasma with arbitrary degeneracy of electrons

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