We discuss the dependence of phase diagram a hypothetical isotope helium with nuclear mass less than 4 atomic units. argue that decreasing nucleus mass, temperature superfluid transition (about 2.2 K in real He-4) increases, while liquid-gas critical point 5.2 decreases. various scenarios may occur when two temperatures approach each other and order parameters transitions interact other. The si...

Initially introduced in 1989 [9], the Bose-Hubbard model has been the object of much recent work. It represents a simple lattice model of itinerant bosons which interact locally. This model turns out to describe fairly well recent experiments with bosonic atoms in optical lattices [12, 15]. Its low-temperature phase diagram has been uncovered in several studies, both analytical (see e.g. [9, 10...

We study the interplay between chiral and diquark condensates within the framework of the Ginzburg-Landau free energy, and classify possible phase structures of two and three-flavor massless QCD. The QCD axial anomaly acts as an external field applied to the chiral condensate in a color superconductor and leads to a crossover between the broken chiral symmetry and the color superconducting phas...

The spatial observation of a Bose condensate is reported. Dispersive light scattering was used to observe the separation between the condensed and normal components of the Bose gas inside a magnetic trap. This technique is nondestructive, and about a hundred images of the same condensate can be taken. The width of the angular distribution of scattered light increased suddenly at the phase trans...

Gas reservoirs usually have high recovery due to high mobility and low residual gas saturation, although some of them producing under water-drive mechanism have low recovery efficiency. Encroachment of water into these reservoirs traps considerable amount of gas and increases the maximum residual gas saturation, which results in the reduction of gas and condensate production. Generally, the rec...

The behaviour of a solid-liquid-gas system near the three-phase contact line is considered using a diffuse-interface model with no-slip at the solid and where the fluid phase is specified by a continuous density field. Relaxation of the classical approach of a sharp liquid-gas interface and careful examination of the asymptotic behaviour as the contact line is approached is shown to resolve the...

We investigate the rotation effects on mesonic condensation in isospin matter. Using two-flavor NJL effective model with a global rotation, we demonstrate two important of its phase structure: rotational suppression scalar-channel condensates, particular pion region; and enhancement rho region vector-channel condensate. A new diagram for matter under is mapped out ω −μI plane where three distin...

The polarized Fermi gas, which has recently been realized in ultra-cold atomic gases where the number of atoms in the two spin states is different, has attracted many experimental and theoretical works. This paper introduces the phase diagram of the polarized Fermi gas at T = 0 and at finite temperature as well. Open questions that haven’t been solved are pointed out and available experiments a...