Path integral approach for Stark broadening of Lyman lines in hydrogen plasma

N. Bedida; M. Difallah; M. T. Meftah; H. Reinholz; G. Röpke

doi:10.1002/ctpp.201800039

Path integral approach for Stark broadening of Lyman lines in hydrogen plasma

N. Bedida, M. Difallah, M. T. Meftah, H. Reinholz, G. Röpke

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Abstract

New results for Lyman lines from hydrogen plasmas are presented using the path integral approach. The influence of plasma components (electrons and ions) on the radiator is analysed separately. The ionic contribution is treated within the path integral approach, while the electronic contribution is estimated by the standard collision operator. The Stark effect, including the ion quadrupole contribution, is considered. The time-dependent ionic microfield is treated within the path integral approximation using the model microfield method (MMM). The comparison with the quantum statistical approach is performed using a wide range of temperatures (T = 10⁴–10⁷ K) and electron densities (N_e = 10²³–10²⁶ m⁻³). Good agreement is mainly obtained for low density and high temperature.

Original language	English
Pages (from-to)	63-71
Number of pages	9
Journal	Contributions to Plasma Physics
Volume	59
Issue number	1
DOIs	https://doi.org/10.1002/ctpp.201800039
Publication status	Published - 1 Jan 2019
Externally published	Yes

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title = "Path integral approach for Stark broadening of Lyman lines in hydrogen plasma",

abstract = "New results for Lyman lines from hydrogen plasmas are presented using the path integral approach. The influence of plasma components (electrons and ions) on the radiator is analysed separately. The ionic contribution is treated within the path integral approach, while the electronic contribution is estimated by the standard collision operator. The Stark effect, including the ion quadrupole contribution, is considered. The time-dependent ionic microfield is treated within the path integral approximation using the model microfield method (MMM). The comparison with the quantum statistical approach is performed using a wide range of temperatures (T = 104–107 K) and electron densities (Ne = 1023–1026 m−3). Good agreement is mainly obtained for low density and high temperature.",

keywords = "dipole autocorrelation function, path integral, quantum statistics, spectral line shape, Stark broadening",

author = "N. Bedida and M. Difallah and Meftah, {M. T.} and H. Reinholz and G. R{\"o}pke",

year = "2019",

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doi = "10.1002/ctpp.201800039",

language = "English",

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T1 - Path integral approach for Stark broadening of Lyman lines in hydrogen plasma

AU - Bedida, N.

AU - Difallah, M.

AU - Meftah, M. T.

AU - Reinholz, H.

AU - Röpke, G.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - New results for Lyman lines from hydrogen plasmas are presented using the path integral approach. The influence of plasma components (electrons and ions) on the radiator is analysed separately. The ionic contribution is treated within the path integral approach, while the electronic contribution is estimated by the standard collision operator. The Stark effect, including the ion quadrupole contribution, is considered. The time-dependent ionic microfield is treated within the path integral approximation using the model microfield method (MMM). The comparison with the quantum statistical approach is performed using a wide range of temperatures (T = 104–107 K) and electron densities (Ne = 1023–1026 m−3). Good agreement is mainly obtained for low density and high temperature.

AB - New results for Lyman lines from hydrogen plasmas are presented using the path integral approach. The influence of plasma components (electrons and ions) on the radiator is analysed separately. The ionic contribution is treated within the path integral approach, while the electronic contribution is estimated by the standard collision operator. The Stark effect, including the ion quadrupole contribution, is considered. The time-dependent ionic microfield is treated within the path integral approximation using the model microfield method (MMM). The comparison with the quantum statistical approach is performed using a wide range of temperatures (T = 104–107 K) and electron densities (Ne = 1023–1026 m−3). Good agreement is mainly obtained for low density and high temperature.

KW - dipole autocorrelation function

KW - path integral

KW - quantum statistics

KW - spectral line shape

KW - Stark broadening

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DO - 10.1002/ctpp.201800039

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SP - 63

EP - 71

JO - Contributions to Plasma Physics

JF - Contributions to Plasma Physics

IS - 1

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Path integral approach for Stark broadening of Lyman lines in hydrogen plasma

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