Superconductivity and Superfluidity

Written for advanced students, this text explores how certain conductors at very low temperatures, along with liquid helium 4 and helium 3, enter states of superconductivity and superfluidity. Their behavior arises from quantum effects visible on a large scale. The opening section builds a mean field framework for generalized pair condensation. Later chapters move to conventional superconductors, explained through BCS theory, then to strong coupling theory and the Ginzburg-Landau approach.

The author then turns to superfluid helium 3, treated as a case where internal degrees of freedom shape the superfluid's unusual properties. The final chapter covers newer research, including copper-oxide high-temperature superconductors and unconventional superconductivity in heavy fermion materials.

The book is aimed at graduate students and researchers in condensed matter physics, particularly those focused on superconductivity and superfluidity.