A bstract The double copy is a remarkable relationship between gauge theory and gravity
that has been explored in a number of contexts, most notably scattering amplitudes and …

We develop the off-shell nilpotent finite field dependent Becchi–Rouet–Stora–Tyutin (BRST)
transformations and show that for different choices of the finite field dependent parameter …

Using the technique of finite field dependent BRST transformations we show that the
classical massive Yang–Mills theory and the pure Yang–Mills theory whose gauge …

Abstract We consider the Gribov-Zwanziger (GZ) theory with appropriate horizon term which
exhibits the nilpotent BRST invariance. This infinitesimal BRST transformation has been …

We generalize the BRST transformations in Abelian rank-2 tensor field theory by allowing
the parameter to be finite and field-dependent and show that such transformations play …

We develop BRST symmetry for the first time for a particle on the surface of a torus knot by
analyzing the constraints of the system. The theory contains 2nd-class constraints and has …

We establish a finite field-dependent BRS transformation that connects the Yang–Mills path
integrals with the Faddeev–Popov effective actions for an arbitrary pair of gauges F and F' …

We consider the finite field dependent BRST (FFBRST) transformations in the context of
Hamiltonian formulation using Batalin-Fradkin-Vilkovisky method. The non-trivial Jacobian …

We investigate all possible nilpotent symmetries for a particle on torus. We explicitly
construct four independent nilpotent BRST symmetries for such systems and derive the …

We consider the Polyakov theory of bosonic strings in conformal gauge which are used to
study the conformal anomaly. However, it exhibits ghost number anomaly. We show how this …