91 citations · 2.8k across the 127 of their papers we have counts for
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Gaugeon Formalism for Perturbative Quantum Gravity
Sudhaker Upadhyay
In this paper we investigate the Yokoyama gaugeon formalism for perturbative quantum gravity in a general curved spacetime. Within the gaugeon formalism, we extend the configuratio…
Finite field-dependent symmetries in perturbative quantum gravity
Sudhaker Upadhyay
In this paper we discuss the absolutely anticommuting nilpotent symmetries for perturbative quantum gravity in general curved spacetime in linear and non-linear gauges. Further, we…
BRST symmetry and Darboux transformations in Abelian 2-form gauge theory
Sudhaker Upadhyay
We analyse the constraints of an Abelian 2-form gauge theory using Faddeev-Jackiw symplectic formalism. Further, this theory is treated as a constrained system in the context of Ba…
Aspects of finite field-dependent symmetry in SU(2) Cho-Faddeev-Niemi decomposition
Sudhaker Upadhyay
In this Letter we consider SU(2) Yang-Mills theory analysed in Cho-Faddeev-Niemi variables which remains invariant under local gauge transformations. The BRST symmetries of this th…
Generalized supersymmetry and sigma models
Rabin Banerjee, Sudhaker Upadhyay
In this paper, we discuss the generalizations of exact supersymmetries present in the supersymmetrized sigma models. These generalizations are made by making the supersymmetric tra…
Noncommutative Gauge Theories: Model for Hodge theory
Sudhaker Upadhyay, Bhabani Prasad Mandal
The nilpotent BRST, anti-BRST, dual-BRST and anti-dual-BRST symmetry transformations are constructed in the context of noncommutative (NC) 1-form as well as 2-form gauge theories.…