The understanding of the intermolecular pair potential is important for determining the physical andchemical properties of the matter. The new data for noble gasses was calculated with Soft-CoreDouble Yukawa Potential (SCDY). We studied the effect of the Soft- Core potential on the phasebehavior with Hartree-Fock-Dispersion (HFD) Potential. This model had a steep repulsionexponential term and d...

We investigate how the phase diagram of a repulsive soft-core attractive potential, with a liquid-liquid phase transition in addition to the standard gas-liquid phase transition, changes by varying the parameters of the potential. We extend our previous work on short soft-core ranges to the case of large soft-core ranges, by using an integral equation approach in the hypernetted-chain approxima...

In polymer melts, the interaction between segments are considered to be screened and ideal Gaussian chain statistics is recovered. The experimental fact that linear viscoelasticity of unentangled polymers can well described by Rouse model naively as due this screening effect. Although various theoretical models based on effect believed reasonable, cannot fully justified a solid basis. work, we ...

We theoretically study the magnetization relaxation of Ising spins distributed randomly in a $d$-dimension homogeneous and Gaussian profile under soft-core two-body interaction potential $\ensuremath{\propto}1/[1+{(r/{R}_{c})}^{\ensuremath{\alpha}}]$ $(\ensuremath{\alpha}\ensuremath{\ge}d)$, where $r$ is interspin distance ${R}_{c}$ radius. The dynamics starts with all polarized transverse dire...

The electrostatic potential profile of a spherical soft particle is derived by solving the Poisson-Boltzmann equations on a spherical system both numerically and analytically. The soft particle is assumed to consist of an ion-permeable charged outer layer and a non-permeable charged core with constant charged density. The contribution of the core to the potential profile is calculated for diffe...