Theory of degenerate He3-He 2 solution

A degenerate solution consisting of He3 dissolved in superfluid He4 is considered from the viewpoint of a system of the Fermi particles with short range interaction. All terms in the expansion of the thermodynamic quantities and kinetic coefficients in powers of xsup(1/3) (x is the molar concentration) are obtained for the case when the properties of the solution are determined by only one parameter, the s-scattering length. A comparison with experimental data shows that the theory satisfactorily describes the solution for concentrations up to 3-4%. The velocities of propagation of spin waves, hydrodynamic and high-frequency sound oscillations are calculated