The topic of cosmic strings provides a bridge between the physics of the very small and the
very large. They are predicted by some unified theories of particle interactions. If they exist …

Nuclear matter and finite nuclei exhibit the property of superfluidity by forming Cooper pairs.
We review the microscopic theories and methods that are being employed to understand the …

The symmetry breaking of grand unified gauge groups in the early Universe often leaves
behind relic topological defects such as cosmic strings, domain walls, or monopoles. For …

We discuss aspects of global and gauged symmetries in quantum field theory and quantum
gravity, focusing on discrete gauge symmetries. An effective Lagrangian description of Z p …

We point out that local symmetries can masquerade as discrete global symmetries to an
observer equipped with only low-energy probes. The existence of the underlying local …

We provide the perturbative and non‐perturbative arguments showing that theories with
large number of species of the quantum fields, imply an inevitable hierarchy between the …

This book is based on a lecture course taught over a number of years in the Department of
Quantum Statistics and Field Theory of the Moscow State University, Faculty of Physics, to …

An analytic model of long string network evolution, recently developed by the authors, is
presented in detail, and modified to describe string loop evolution. By treating the average …

A review is presented of different scenarios of baryogenesis mostly developed after the GUT
era. The lepton and electric asymmetries of the Universe are also discussed.

Cosmic strings are a common prediction in many grand unified theories and a promising
source of stochastic gravitational waves (GWs) from the early Universe. In this paper, we …