Geodesic
Supercritical fluid of particles with a~Yukawa potential: A~new approximation for the~direct correlation function and the~Widom line
Teoretičeskaâ i matematičeskaâ fizika, Tome 189 (2016) no. 3, pp. 464-476

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We propose an approximation of a direct correlation function corresponding to the linearization with respect to ${-}\beta\phi(r)$ of a generalized mean spherical approximation for a hard-core multi-Yukawa system of particles. We use the results to study the behavior of maximums of thermodynamic response functions in the supercritical region of a fluid with a two-term Yukawa potential imitating the Lennard-Jones potential.
Keywords: direct correlation function, supercritical fluid, Widom line, Yukawa potential. 
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     author = {E. E. Tareeva and V. N. Ryzhov},
     title = {Supercritical fluid of particles with {a~Yukawa} potential: {A~new} approximation for the~direct correlation function and {the~Widom} line},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {464--476},
     publisher = {mathdoc},
     volume = {189},
     number = {3},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2016_189_3_a11/}
}
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E. E. Tareeva; V. N. Ryzhov. Supercritical fluid of particles with a~Yukawa potential: A~new approximation for the~direct correlation function and the~Widom line. Teoretičeskaâ i matematičeskaâ fizika, Tome 189 (2016) no. 3, pp. 464-476. http://geodesic.mathdoc.fr/item/TMF_2016_189_3_a11/