Some Aspects of Pairing Correlations in Finite Fermi Systems

Effects of pairing correlations of superconducting type in rotating nuclei and metallic grains are considered in this work. Main theoretical approaches that are used to describe these effects in rotating nuclei are reviewed here. The role of quantum fluctuations is shown to be important for analyzing superconductivity phenomena in such systems is shown. The exactly solvable model of pairing correlations of superconducting type successfully applied for atomic nuclei and metallic grains is considered.