Thermodynamics of multi-component Fermi vapours

We study the thermodynamical properties of Fermi vapours confined in a harm onic external potential. In the case of the ideal Fermi gas, we compare exa ct density profiles with their semiclassical approximation in the condition s of recent experiments. Then, we consider the phase separation of a multi- component Fermi vapour. In particular, we analyse the phase separation as a function of temperature, number of particles and scattering length. Finall y, we discuss the effect of rotation on the stability and thermodynamics of the trapped vapours.