We have studied inflationary paradigm through an equation of state. With a single parameter state as function the scalar field responsible for accelerated expansion, we find observationally viable model satisfying all constraints laid down by recent observations. The resulting can efficiently cover wide range tensor-to-scalar ratio ranging from $r\sim\mathcal{O}(10^{-1})$ to $\mathcal{O}(10^{-6...

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...

a three-parameter cubic equation of state has been proposed for predicting pvt of pure refrigerantssuch as r236ea, r236fa, r245fa, r245ca, r218, r227ea, and r717, from freezing point up to critical pointtemperature and pressures up 650 atm. we explore the theory of the equation of state from the view pointof ihm–song–mason (ism) equation of state, which has been derived on the basis of statisti...