B. P. Kosyakov — Page 2

arXiv2000

Physical sense of renormalizability

A plausible physical interpretation of the renormalizability condition is given. It is shown that renormalizable quantum field theories describe such systems wherein the tendency to collapse associated with vacuum fluctuations of attractive forces is suppressed by vacuum fluctuations of kinetic energy. Relaying on the classification of topological types of evolution of point particles and analysing the problem of the fall to the centre, we obtain a general criterion for preventability of collapse which states that the spectrum of the Hamiltonian must be bounded from below. The holographic principle is used to explain the origin of anomalies and make precise the relation between the renormalizability and the reversibility.

hep-th↗

arXiv1999

Exact solutions in the Yang-Mills-Wong theory

This paper discusses in a systematical way exact retarded solutions to the classical SU(N) Yang-Mills equations with the source composed of several colored point particles. A new method of finding such solutions is reviewed. Relying on features of the solutions, a toy model of quark binding is suggested. According to this model, quarks forming a hadron are influenced by no confining force in spite of the presence of a linearly rising term of the potential. The large-N dynamics of quarks conforms well with Witten's phenomenology. On the semiclassical level, hadrons are color neutral in the Gauss law sense. Nevertheless, a specific multiplet structure is observable in the form of the Regge sequences related to infinite-dimensional unitary representations of SL(4,R) which is shown to be the color gauge group of the background field generated by any hadron. The simultaneous consideration of SU(N), SO(N), and Sp(N) as gauge groups offers a plausible explanation of the fact that clusters containing two or three quarks are more stable than multiquark clusters.

hep-th↗