Problems of lagragian and Hamiltonian BRST quantization of Gauge theories
Renormallizable gravity and Lorentz violation with spin-2 fields
Quantum field theory with indefinite metric, from planar models in condensed matt...
| Full text | |
| Author(s): |
Upadhyay, Sudhaker
;
Oksanen, Markku
;
Bufalo, Rodrigo
Total Authors: 3
|
| Document type: | Journal article |
| Source: | Brazilian Journal of Physics; v. 47, n. 3, p. 350-365, JUN 2017. |
| Web of Science Citations: | 3 |
| Abstract | |
We study the quantization of two versions of unimodular gravity, namely fully diffeomorphism-invariant unimodular gravity and unimodular gravity with fixed metric determinant, utilizing standard path integral approach. We derive the BRST symmetry of effective actions corresponding to several relevant gauge conditions. We observe that for some gauge conditions, the restricted gauge structure may complicate the formulation and effective actions, in particular, if the chosen gauge conditions involve the canonical momentum conjugate to the induced metric on the spatial hypersurface. The BRST symmetry is extended further to the finite field-dependent BRST transformation, in order to establish the mapping between different gauge conditions in each of the two versions of unimodular gravity. (AU) | |
| FAPESP's process: | 11/20653-3 - Higher-order field theory: a study of the generalized scalar electrodynamics |
| Grantee: | Rodrigo Santos Bufalo |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |