{ "id": "2410.23694", "version": "v1", "published": "2024-10-31T07:37:41.000Z", "updated": "2024-10-31T07:37:41.000Z", "title": "Supercritical Crossover Lines in the Cell Fluid Model", "authors": [ "O. A. Dobush", "M. P. Kozlovskii", "R. V. Romanik" ], "comment": "10 pages, 5 figures", "categories": [ "cond-mat.stat-mech" ], "abstract": "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.", "revisions": [ { "version": "v1", "updated": "2024-10-31T07:37:41.000Z" } ], "analyses": { "keywords": [ "cell fluid model", "supercritical crossover lines", "thermal expansion coefficient maxima", "isothermal compressibility maxima", "external field" ], "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable" } } }