Supercritical Crossover Lines in the Cell Fluid Model
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866915230732255232 |
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| author | Dobush, O. A. Kozlovskii, M. P. Romanik, R. V. |
| author_facet | Dobush, O. A. Kozlovskii, M. P. Romanik, R. V. |
| contents | A cell fluid model with a modified Morse potential is studied. The supercritical states are considered with respect to a possibility to build a separation boundary between liquid-like and gas-like bahaviors. Three different lines are calculated that can be used for this purpose: the locus of the isothermal compressibility maxima, the locus of the thermal expansion coefficient maxima, and the line where the effective chemical potential is zero, M=0. By the symmetry of the functionals for the partition functions, the condition M=0 in fluids is analogous to the absence of an external field in the Ising model. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2410_23694 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Supercritical Crossover Lines in the Cell Fluid Model Dobush, O. A. Kozlovskii, M. P. Romanik, R. V. Statistical Mechanics A cell fluid model with a modified Morse potential is studied. The supercritical states are considered with respect to a possibility to build a separation boundary between liquid-like and gas-like bahaviors. Three different lines are calculated that can be used for this purpose: the locus of the isothermal compressibility maxima, the locus of the thermal expansion coefficient maxima, and the line where the effective chemical potential is zero, M=0. By the symmetry of the functionals for the partition functions, the condition M=0 in fluids is analogous to the absence of an external field in the Ising model. |
| title | Supercritical Crossover Lines in the Cell Fluid Model |
| topic | Statistical Mechanics |
| url | https://arxiv.org/abs/2410.23694 |