Golden Archive RussianEnglish The paper "Superfluidity in system with fermion condensate" (V. A. Khodel and V. R. Shaginyan, (1990)) 2016-03-25 14:54:02 V. A. Khodel Russian Research Center Kurchatov Institute, Moscow, 123182, Russia McDonnell Center for the Space Sciences & Department of Physics, Washington University, St.Louis, MO 63130, USA V. R. Shaginyan National Research Center "Kurchatov Institute", Petersburg Nuclear Physics Institute, Gatchina, 188300, Russia In the paper submitted in April of 1990, a new type of phase transition is introduced [1]. This phase transition occurs as the effective mass of quasiparticles diverges, $M^*\to\infty$, that is the fermions get very heavy. Beyond the point of the phase transition a fermion condensate (FC) arises in new phase: The energy $\varepsilon(p)$ of quasiparticles with momenta \$p_i