Seminarium Fizyki Materii Skondensowanej

I will summarize our recent computations done using the effective field theory of the free energy of the gas of spin $s=1/2$ fermions interacting through a short range spin independent repulsive potential. The result is used to study the impact the higher order corrections can have on the characteristics of the phase transition to the ordered phase (on the emergence of the itinerant ferromagnetism). I will also comment on the relationof our results to the experiments with cold gases of fermionic atoms.