A new and simple equation of state a monatomic quantum crystal is constructed using the continuum approximation for interacting atoms Mie-Gruneisen theory. The makes it possible to describe phase diagram both in region compressive pressures vicinity critical point. Expressions volume, pressure temperature are found analytically. Comparison numerical calculations with experimental data helium sh...

Numerical solution of the two-dimensional wave equation requires mapping from a physical domain without boundaries to a computational domain with artificial boundaries. For realistic solutions, the artificial boundaries should cause waves to pass directly through and thus mimic total absorption of energy. An artificial boundary which propagates waves in one direction only is derived from approx...

We present the results of 3D Newtonian SPH simulations of the merger of a neutron star binary. The microscopic properties of matter are described by the physical equation of state of Lattimer and Swesty (LS-EOS). To check the model dependence of the results we vary the resolution (∼ 21000 and ∼ 50000 particles), the equation of state (stiff and soft polytropes), the artificial viscosity scheme,...

Bird flocks, mammal herds, cellular tissue, and artificial self-propelled colloids are all examples of “active” matter—an assembly of self-driven units that take energy from the environment to produce motion [1]. Active matter is, in many ways, analogous to a gas of atoms or molecules, except that the particles are far from equilibrium, and therefore cannot be described with standard statistica...