Supercritical fluid of particles with a Yukawa potential: A new approximation for the direct correlation function and the Widom line |
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Authors: | E E Tareyeva V N Ryzhov |
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Institution: | 1.Vereshchagin Institute for High Pressure Physics,RAS,Troitsk, Moscow Oblast,Russia |
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Abstract: | We propose an approximation of a direct correlation function corresponding to the linearization with respect to ?β?(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. |
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