Inhomogeneous fluid of penetrable-spheres: application of the random phase approximation
arXiv:1704.06725 · doi:10.1063/1.4983129
Abstract
The focus of the present work is the application of the random phase approximation (RPA), derived for inhomogeneous fluids [Frydel and Ma, Phys. Rev. E 93, 062112 (2016)], to penetrable-spheres. As penetrable-spheres transform into hard-spheres with increasing interactions, they provide an interesting case for exploring the RPA, its shortcomings, and limitations, the weak- versus the strong-coupling limit. Two scenarios taken up by the present study are a one-component and a two-component fluid with symmetric interactions. In the latter case, the mean-field contributions cancel out and any contributions from particle interactions are accounted for by correlations. The accuracy of the RPA for this case is the result of a somewhat lucky cancellation of errors.
References in corpus (8)
- Random-phase approximation and its applications in computational chemistry and materials science
- Can Polymer Coils be modeled as "Soft Colloids"?
- Exact Criterion for Determining Clustering vs. Reentrant Melting Behavior for Bounded Interaction Potentials
- Solving Fluctuation-Enhanced Poisson-Boltzmann Equations
- Density functional formulation of the Random Phase Approximation for inhomogeneous fluids: application to the Gaussian core and Coulomb particles
- Mean-field electrostatics beyond the point-charge description
- The double-layer structure of overscreened surfaces by smeared-out ions
- Introduction to statistical field-theory: from a toy model to a one-component plasma
Cited by in corpus (5)
- General theory of charge regulation within the Poisson-Boltzmann framework: study of a sticky-charged wall model
- Soft-particle lattice-gas in 1d: one- and two-component cases
- Mean-field theory of active electrolytes: dynamic adsorption and overscreening
- Two-component Gaussian core model: strong-coupling limit, Bjerrum pairs, and gas-liquid phase transition
- Electrostatic contribution to colloidal solvation in terms of the self-energy modified Boltzmann distribution