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Local Field Corrections Effect on Equation of State in Dense Hydrogen Plasma: Plasma Phase Transition
Author(s) -
Bennadji K.
Publication year - 2011
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.201000073
Subject(s) - plasma , polarizability , coupling parameter , phase transition , physics , equation of state , random phase approximation , coupling (piping) , electron , hydrogen , phase (matter) , monte carlo method , atomic physics , local field , condensed matter physics , quantum electrodynamics , materials science , thermodynamics , quantum mechanics , statistics , mathematics , molecule , metallurgy
We present calculations of Hydrogen plasma pressure including local field correction (LFC) effects modelled in the Singwi Tosi Land and Sjölander model extended to arbitrary temperature (ATSTLS), neutrals contributions are not included. We show that LFC induces thermodynamic instabilities (phase transition) in the vicinity of the maximum electron coupling parameter which corresponds to maximum departure of the ATSTLS electron polarizability from the Random Phase Approximation one. Comparison of our results to Monte‐Carlo calculations induced us to think that free electron coupling plays a dominant role in plasma phase transition. Critical temperature is estimated and compared to existing values (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)