arXiv subjects

Igor Tyutin

Publications and source records attributed to Igor Tyutin.

3 recordsLinked to original sources

arXiv2006

BRST-Invariant Constraint Algebra in Terms of Commutators and Quantum Antibrackets

General structure of BRST-invariant constraint algebra is established, in its commutator and antibracket forms, by means of formulation of algebra-generating equations in yet more extended phase space. New ghost-type variables behave as fields and antifields with respect to quantum antibrackets. Explicit form of BRST-invariant gauge algebra is given in detail for rank-one theories with Weyl- and Wick- ordered ghost sector. A gauge-fixed unitarizing Hamiltonian is constructed, and the formalism is shown to be physically equivalent to the standard BRST-BFV approach.

hep-th↗

arXiv2003

On the transformations of hamiltonian gauge algebra under rotations of constraints

By explicit calculation of the effect of a ghost-dependent canonical transformation of BRST-charge, we derive the corresponding transformation law for structure coefficients of hamiltonian gauge algebra under rotation of constraints.We show the transformation law to deviate from the behaviour (expected naively) characteristic to a genuine connection.

hep-th↗

arXiv1997

Lagrangian formulation of irreducible massive fields of arbitrary spin in 2+1 dimensions

Lagrangian formulation of free massive fields corresponding to irreducible representations of the Poincare group of arbitrary integer and half-integer spins in three-dimensional space-time is presented. A relationship of the theory under consideration with the self-duality equations in four dimensions is discussed.

hep-th↗