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Reducible gauge theories in very special relativity
Sudhaker Upadhyay
In this paper we analyze the tensor field (reducible gauge) theories in the context of very special relativity (VSR). Particularly, we study the VSR gauge symmetry as well as VSR B…
BRST Quantization of Unimodular Gravity
S. Upadhyay, M. Oksanen, R. Bufalo
We study the quantization of two versions of unimodular gravity, namely, fully diffeomorphism-invariant unimodular gravity and unimodular gravity with fixed metric determinant util…
Ward identities and gauge flow for M-theory in superspace
Sudhaker Upadhyay
We derive the BRST symmetry, Slavnov-Taylor identities and Nielsen identities for the ABJM theories in harmonic superspace. Further, the gauge dependence of one-part…
A superspace description of Friedmann-Robertson-Walker models
Sudhaker Upadhyay
We illustrate the cosmological Friedmann-Robertson-Walker (FRW) models realized as gauge theory in the extended configuration space with its Becchi-Rouet-Stora-Tyutin (BRST) invari…
Spontaneous breaking of nilpotent symmetry in boundary BLG theory
Sudhaker Upadhyay
We exploit boundary term to preserve the supersymmetric gauge invariance of Bagger--Lambert--Gustavsson (BLG) theory. The fermionic rigid BRST and anti-BRST symmetries are studied…
BRST symmetry for Regge-Teitelboim based minisuperspace models
Sudhaker Upadhyay, Biswajit Paul
The Einstein-Hilbert action in the context of Higher derivative theories is considered for finding out their BRST symmetries. Being a constraint system, the model is transformed in…