Quantum-statistical T-matrix approach to line broadening of hydrogen in dense plasmas

Journal Article · Fri Oct 29 04:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3517588· OSTI ID:21428692

Lorenzen, Sonja; Wierling, August; Roepke, Gerd ^[1]; Reinholz, Heidi ^[2]; Zammit, Mark C; Fursa, Dmitry V; Bray, Igor ^[3]

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1. Institute of Physics, University of Rostock, 18051 Rostock (Germany)
2. Institute for Theoretical Physics, Johannes Kepler University Linz, 4040 Linz (Austria)
3. Institute of Theoretical Physics, Curtin University of Technology, Perth WA 6845 (Australia)

The electronic self-energy {Sigma}{sup e} is an important input in a quantum-statistical theory for spectral line profile calculations. It describes the influence of plasma electrons on bound state properties. In dense plasmas, the effect of strong, i.e. close, electron-emitter collisions can be considered by three-particle T-matrix diagrams. These digrams are approximated with the help of an effective two-particle T-matrix, which is obtained from convergent close-coupling calculations with Debye screening. A comparison with other theories is carried out for the 2p level of hydrogen at k{sub B}T = 1 eV and n{sub e} = 2{center_dot}10{sup 23} m{sup -3}, and results are given for n{sub e} = 1{center_dot}10{sup 25} m{sup -3}.

• OSTI ID: 21428692
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1290; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
74 ATOMIC AND MOLECULAR PHYSICS
BOUND STATE
COLLISIONS
COMPARATIVE EVALUATIONS
ELECTRON COLLISIONS
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY
ENERGY LEVELS
ENERGY RANGE
EV RANGE
EVALUATION
EXCITED STATES
FERMIONS
HYDROGEN
LEPTONS
LINE BROADENING
MATHEMATICAL MODELS
MATRICES
NONMETALS
PLASMA
PLASMA DENSITY
RYDBERG STATES
S MATRIX
SELF-ENERGY
STATISTICAL MODELS