Statistical properties of two interacting soft spheres in a hard spherical pore. (3rd June 2015)

• Record Type: Journal Article
• Authors: Kim, Soon-Chul
• Is Part Of: Journal of statistical mechanics. (2015:Jun.)
• Publication Date: 2015-06-03
• Subjects: 15; 15/260 -- 15/330; Statistical mechanics -- Periodicals; Mechanics -- Statistical methods -- Periodicals; 530.1305
• DOI: 10.1088/1742-5468/2015/06/P06010
• Languages: English
• ISSNs: 1742-5468

Abstract

Abstract: The structure and thermodynamics of two soft spheres, whose interactions include the soft repulsion and attraction, confined in a hard spherical pore have been considered. The exact partition function, one-body density, and equation of state have been obtained using the Fourier transform method. The pore-size and potential dependence of the structural and thermodynamic properties have been investigated. The two penetrable square-well spheres shows a negative compressibility of the van der Waals type, which imitates the phase transition of many particle system. The van der Waals instability for two penetrable square-well spheres has been studied.