Equation of state of weakly nonideal plasmas and electroneutrality condition

Старостин, А. Н.; Roerich, V.

doi:10.1088/0305-4470/39/17/s18

Cited by 12 publications

(19 citation statements)

References 11 publications

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“…(20) and (22) approach the data of MD simulation. However, both formulas contradict these data in the vicinity of ionization threshold.…”

Section: Energy Distribution Of Pair Fluctuationsmentioning

confidence: 99%

“…The history of the problem goes back to Planck [15], Fermi [16], and Brillouin [17]. The simultaneous consideration of free and pair "bound states" (atoms) turned out to be possible owing to the application of quantum statistical physics [2,3,[18][19][20] (however, only in the ideal plasma limit) and produced a convergent expression for Z [1][2][3]. The assumption of interaction between continuous spectrum of collective excitations of free electrons and discrete spectrum of excited atoms is discussed in [ In the present paper, an attempt is made at simultaneous consideration of free and pair "bound states" (highly excited atoms) in nonideal plasma.…”

Section: Introductionmentioning

confidence: 99%

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Pair fluctuations in nonideal plasma and their restriction at the ionization threshold

Lankin

Norman

2008

High Temp

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A self-consistent fluctuation approach is developed to the consideration of the spectral region intermediate between discrete and continuous levels of energy in nonideal plasma. Pair fluctuations are identified within the classical method of molecular dynamics. The transition of pair fluctuations in the limit of low degrees of nonideality of plasma to excited atoms is considered. The domains of existence of excited atoms and pair fluctuations are estimated. The pattern of restraint of statistical sum of atom in nonideal plasma is clarified.

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“…(20) and (22) approach the data of MD simulation. However, both formulas contradict these data in the vicinity of ionization threshold.…”

Section: Energy Distribution Of Pair Fluctuationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Pair fluctuations in nonideal plasma and their restriction at the ionization threshold

Lankin

Norman

2008

High Temp

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“…SAHA-S [45][46][47][48] (see also Starostin, these proceedings) is part of a larger Russian effort to upgrade the equation of state, opacity, nuclear reaction and diffusion rates for solar modeling. The equation of state part is SAHA-S.…”

Section: Present and Future Developmentsmentioning

confidence: 99%

High‐Precision Equation‐of‐State Formalisms for Solar and Stellar Modeling

Däppen

2011

Contrib. Plasma Phys.

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For solar and stellar modeling, a high-quality equation of state is crucial. In addition, however, helioseismic and asteroseismic observations put constraints on the physical formalisms. Thus they effectively turn the Sun and the stars into laboratories for dense plasmas. Currently, the main astrophysical beneficiary of a good equation of state is the seismic determination of the chemical composition of the interior of the Sun and stars.

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“…All pressure contributions including also the diffraction correction, the bound and the scattering states, and the radiation pressure were described in details in [9,10]. Influence of the atomic states broadening on the contribution of the bound states has been considered in [11].…”

Section: Thermodynamic Perturbation Theorymentioning

confidence: 99%

Account of Atomic and Molecular Contributions in the Equation of‐State for a Weakly Non‐Ideal Hydrogen Plasmas

Старостин¹,

Roerich

2010

Contrib. Plasma Phys.

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Convergent partition function for atomic and molecular bound states is derived for weakly non-ideal hydrogen plasmas. Corrections due to charged-neutral particles interactions are also described. These contributions have been realized in the model equation of state of hydrogen plasmas and the HEOS code. The physical model EOS also includes the Coulomb and diffraction corrections, contributions of the scattering states, electron and ion interactions, and the radiation pressure. The calculated dependences of the heat capacity, the ionization degree, and partial pressures are presented.

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Equation of state of weakly nonideal plasmas and electroneutrality condition

Cited by 12 publications

References 11 publications

Pair fluctuations in nonideal plasma and their restriction at the ionization threshold

Pair fluctuations in nonideal plasma and their restriction at the ionization threshold

High‐Precision Equation‐of‐State Formalisms for Solar and Stellar Modeling

Account of Atomic and Molecular Contributions in the Equation of‐State for a Weakly Non‐Ideal Hydrogen Plasmas

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