arXiv subjects

T. Vukašinac

Publications and source records attributed to T. Vukašinac.

2 recordsLinked to original sources

arXiv1995

BRST Analysis of Gauge Theories Based on Nonlinear Algebras in 2d

Covariant quantization of theories based on nonlinear extensions of Lie algebras in 2d is studied by using a generalized Lagrangian BRST formalism. The quantum action is constructed to be invariant under the off--shell nilpotent BRST transformations by using a set of independent antifields as auxiliary, nonpropagating variables in the quantum theory. The general results are applied to the quantization of nonlinear gauge theory based on quadratic Poincaré algebra, which is closely related to 2d gravity with dynamical torsion.

hep-th↗

arXiv1993

Conformal Gauge Generators in Liouville Theory

The conformal symmetry in the Liouville theory is analysed by using the Hamiltonian light--front formalism. The boundary conditions of dynamical variables are seen to involve an arbitrary function of time, so that the standard methods for studying gauge symmetries do not work. We develop a general method for constructing the gauge generators, which enables a consistent treatment of the boundary conditions present in the case of the conformal symmetry.

hep-th↗