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Title: Mean-Field Theory of Critical Phenomenon for Mutually Repelling Particles in Complex Plasmas

Abstract

A mean-field theory of criticality for charged particles in complex plasmas is proposed. It is shown that the existence of the critical point and the liquid-vapor coexistence is fully consistent with a purely repulsive potential between particles; the cohesive field due to the plasma background drives these. The critical exponents, calculated by expanding the free energy near the critical point, are found to be classical. The phase coexistence curve, obtained by minimizing Gibbs potential, is similar to that of other mean-field models, e.g., van der Waals fluids, ionic fluids, etc. These results lend support to the concept of 'universality' in widely different systems.

Authors:
 [1]
  1. Department of Physics and Astrophysics, University of Delhi, Delhi-7 (India)
Publication Date:
OSTI Identifier:
20957704
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevLett.98.095003; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CHARGED PARTICLES; CRITICALITY; FREE ENERGY; LIQUIDS; MEAN-FIELD THEORY; PLASMA; POTENTIALS; VAN DER WAALS FORCES; VAPORS

Citation Formats

Avinash, K. Mean-Field Theory of Critical Phenomenon for Mutually Repelling Particles in Complex Plasmas. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.095003.
Avinash, K. Mean-Field Theory of Critical Phenomenon for Mutually Repelling Particles in Complex Plasmas. United States. doi:10.1103/PHYSREVLETT.98.095003.
Avinash, K. Fri . "Mean-Field Theory of Critical Phenomenon for Mutually Repelling Particles in Complex Plasmas". United States. doi:10.1103/PHYSREVLETT.98.095003.
@article{osti_20957704,
title = {Mean-Field Theory of Critical Phenomenon for Mutually Repelling Particles in Complex Plasmas},
author = {Avinash, K.},
abstractNote = {A mean-field theory of criticality for charged particles in complex plasmas is proposed. It is shown that the existence of the critical point and the liquid-vapor coexistence is fully consistent with a purely repulsive potential between particles; the cohesive field due to the plasma background drives these. The critical exponents, calculated by expanding the free energy near the critical point, are found to be classical. The phase coexistence curve, obtained by minimizing Gibbs potential, is similar to that of other mean-field models, e.g., van der Waals fluids, ionic fluids, etc. These results lend support to the concept of 'universality' in widely different systems.},
doi = {10.1103/PHYSREVLETT.98.095003},
journal = {Physical Review Letters},
number = 9,
volume = 98,
place = {United States},
year = {Fri Mar 02 00:00:00 EST 2007},
month = {Fri Mar 02 00:00:00 EST 2007}
}