بررسي اثرات پتانسيل هاي ناهمسانگرد بر گاف انرژي گازي بوزي

Effects of anisotropic potentials on the energy gap of Bose gas

We investigate the effect of dipole-dipole and quadrapole- quadrapole interaction of a weakly interacting Bose gas near the transition temperature on the energy spectra of the thermal and condensate parts. We use the two fluid model and mean field approximation. We show that the effects of the condensate part on the shift of energy is greater than the case of contact potential