We complete a classification of topological phases and their topological defects in crystalline
insulators and superconductors. We consider topological phases and defects described by …

Multicomponent superconductivity is realized in multiband superconductors when an
interband pairing interaction is considerably weaker than the intraband interactions. There is …

Neutron stars are astrophysical laboratories of many extremes of physics. Their rich
phenomenology provides insights into the state and composition of matter at densities which …

Discussing changes over the last two decades, this book represents an up-to-date treatment
of superfluidity. It covers new superfluid materials such as high-temperature and …

Superconductors are of type I or II depending on whether they form an Abrikosov vortex
lattice. Although bulk lead (Pb) is classified as a prototypical type-I superconductor, we show …

We report a microscopic derivation of two-component Ginzburg-Landau (GL) field theory
and the conditions of its validity in two-band superconductors. We also investigate the …

The recent discovery of iron pnictide superconductors has resulted in a rapidly growing
interest in multiband models with more than two bands. In this work we specifically focus on …

We show that two-band superconductors harbor hidden criticality deep in the
superconducting state, stemming from the critical temperature of the weaker band taken as …

Fine details of crystal structure of ZrB 12 two-gap superconductor are studied at low
temperatures by precise x-ray diffraction technique. Small static Jahn-Teller distortions of a …

We study superconducting three-band systems within strong-coupling Eliashberg theory. In
particular, we search for phase-frustrated superconducting systems with spontaneous time …