Helium-like magnesium embedded in strongly coupled plasma

Journal Article · Fri May 06 00:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4946173· OSTI ID:22591298

Bhattacharyya, Sukhamoy ^[1]

---

1. Department of Physics, Acharya Prafulla Chandra College, New Barrackpore, Kolkata 700131, WB (India)

In recent days, with the advent of the x-ray free electron laser (FEL) with Linac coherent light source (LCLS) and the Orion laser, experimental studies on atomic systems within strongly coupled plasma environment with remarkable improvement in accuracy as compared to earlier experiments have become possible. In these kinds of experiments, hydrogen-like and helium-like spectral lines are used for determination of plasma parameters such as temperature, density. Accurate theoretical calculations are, therefore, necessary for such kind of studies within a dense plasma environment. In this work, ab initio calculations are carried out in the framework of the Rayleigh-Ritz variation principle to estimate the ground state energy of helium-like magnesium within strongly coupled plasma environment. Explicitly correlated wave functions in Hylleraas coordinates have been used to incorporate the effect of electron correlation. The ion-sphere model potential that confines the central positive ion in a finite domain filled with plasma electrons has been adopted to mimic the strongly coupled plasma environment. Thermodynamic pressure ’felt’ by the ion in the ground states due to the confinement inside the ion spheres is also estimated.

• OSTI ID: 22591298
• Journal Information: AIP Conference Proceedings, Vol. 1728, Issue 1; Conference: ICC 2015: International conference on condensed matter and applied physics, Bikaner (India), 30-31 Oct 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CATIONS
COMPARATIVE EVALUATIONS
ELECTRON CORRELATION
ELECTRON TEMPERATURE
ELECTRONS
FREE ELECTRON LASERS
GROUND STATES
HYLLERAAS COORDINATES
LIGHT SOURCES
LINEAR ACCELERATORS
MAGNESIUM IONS
MULTICHARGED IONS
PLASMA
PLASMA CONFINEMENT
PLASMA DENSITY
PLASMA PRESSURE
RITZ METHOD
X RADIATION