{ "id": "cond-mat/0301337", "version": "v1", "published": "2003-01-19T22:53:00.000Z", "updated": "2003-01-19T22:53:00.000Z", "title": "Different thermodynamic pathways to the solvation free energy of a spherical cavity in a hard sphere fluid", "authors": [ "Yng-gwei Chen", "John D. Weeks" ], "comment": "10 pages, 4 figures; submitted to J. Chem. Phys", "doi": "10.1063/1.1563592", "categories": [ "cond-mat.stat-mech", "cond-mat.soft" ], "abstract": "This paper determines the excess free energy associated with the formation of a spherical cavity in a hard sphere fluid. The solvation free energy can be calculated by integration of the structural changes induced by inserting the cavity using a number of different exact thermodynamic pathways. We consider three such pathways, including a new density route derived here. Structural information about the nonuniform hard sphere fluid in the presence of a general external field is given by the recently developed hydrostatic linear response (HLR) integral equation. Use of the HLR results in the different pathways gives a generally accurate determination of the solvation free energy for cavities over a wide range of sizes, from zero to infinity. Results for a related method, the Gaussian Field Model, are also discussed.", "revisions": [ { "version": "v1", "updated": "2003-01-19T22:53:00.000Z" } ], "analyses": { "keywords": [ "solvation free energy", "spherical cavity", "thermodynamic pathways", "nonuniform hard sphere fluid", "excess free energy" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable" } } }