The theory of a free string is first presented classically and quantum mechanically both in a
covariant and a nonexplicitly covariant treatment. Then the concepts and techniques …

Various aspects and mechanisms of QCD colour confinement are surveyed. Following the
introduction of gauge-invariant order parameters, a field-correlator definition of the …

Twenty-five years ago, Michael Green, John Schwarz, and Edward Witten wrote two
volumes on string theory. Published during a period of rapid progress in this subject, these …

We call attention to the possibility of constructing field theories for the dual string. As an
example, we show that a Higgs type of Lagrangian allows for vortex-line solutions, in …

We compute the effective action for an abelian vector field coupled to the virtual open Bose
string. The problem is exactly solved (in the “tree” and “one-loop” approximation for the …

The study of strings propagating in background fields has yielded interesting results in the case of
closed strings, where the c Page 1 Nuclear Physics B280 [FS 18] (1987) 599-624 North-Holland …

A classical relativistic theory of one-dimensional extended objects interacting through a
massless scalar field, of which they are in turn the source, is constructed. In the no-coupling …

It is a pleasure for me to contribute to the Yuri Golfand memorial volume. I met Yuri several
times during his occasional visits of Lebedev Institute in the 80's. Two of our discussions in …

This book is an introduction to the role of topology in the quantization of classical systems. It
is also an introduction to topological solitons with special emphasis on Skyrmions. As …

In this paper, we analytically present an exact confining charged black hole solution to the
scalar-tensor description of regularized 4-dimensional Einstein-Gauss-Bonnet gravity …