We present the results of theoretical study of a new scenario of condensation phase transitions in ensemble of particles in ferrofluids. In this scenario the phase transition begins with the formation of linear chainlike clusters which collapse into dense globules when a number of particles in...

In the directed percolation model we consider the probability p of having an open bond as a complex parameter. We show that the roots of the survival probability PN(p) for a square lattice of N rows distribute themselves in a fractal manner in the complex p-plane. These roots have an...

The free energy of the Ginzburg–Landau theory satisfies a nonlinear functional differential equation which is turned into a recursion relation. The latter is solved graphically order by order in the loop expansion to find all connected vacuum diagrams, and their corresponding weights. In this...

Using a model-potential introduced in a previous paper, properties of bismuth under shock loading at high pressure are studied here theoretically. In addition to the usual hydrodynamic behaviour for compact and porous material, our investigation extends to dynamical temperature determination, a...

We study an intrinsic curvature model defined on fixed-connectivity triangulated lattices enclosing a spherical core by using the canonical Monte Carlo simulation technique. We find that the model undergoes a discontinuous transition of shape transformation between the smooth state and a...

We study fragmentation during high-velocity impact for the projectile–bumper system numerically. To this purpose we use two-dimensional particle-based simulation and describe the interparticle interaction by the pair Lennard–Jones (LJ) potential. The evolution of fragments after impact is...

In this paper, the percolation of mixtures of monomers and polyatomic species (k-mers) on a square lattice is studied. By means of a finite-size scaling analysis, the critical exponents and the scaling collapsing of the fraction of percolating lattices are found. A phase diagram separating a...