Beyond universality in repulsive SU(N) Fermi gases
Itinerant ferromagnetism in dilute Fermi gases is vector gp68hx 12vh-012ca predicted to emerge at values of the gas parameter where second-order perturbation theory is not accurate enough to properly describe the system.We have revisited perturbation theory for SU(N) fermions and derived its generalization up to third order both in terms of the gas