Fizika Nizkikh Temperatur: Volume 24, Number 2 (February 1998), p. 176-179 ( to contents , go back )
Bose-Einstein condensation and heat capacity of nonideal gas
V. S. Yarunin
Bogolyubov Laboratory for Theoretical Physics, United Insititute of Nuclear Research
Bogoliubov theory of a nonideal gas is attributed to a quasiclassical nonlinear behavior of Bose-condensate density. Analytical calculation leads to a superfluid 4He-like heat capacity Cv temperature dependence at the temperatures below and above Tc except the region 1.6K< T <2.2K.