3 papers
gr-qc2025
Alternative Action for Generalized Unimodular Gravity
Dmitry Nesterov
We present an alternative formulation of generalized unimodular gravity (GUMG), a class of modifications to general relativity characterized by a special partial breaking of genera…
hep-th2024
Henneaux-Teitelboim Form of the Generalized Unimodular Gravity Action
Dmitry Nesterov, Ksenia Lyamkina
We propose an alternative description of generalized unimodular gravity (GUMG), extending the Henneaux-Teitelboim approach to unimodular gravity (UMG). The central feature of this…
hep-th2014
Microcanonical quantum cosmology: gauge fixing and functional determinants on a circle
Dmitry Nesterov, Andrei Barvinsky
Gauge fixing procedure in the path integral for the microcanonical statistical sum in quantum cosmology is considered in a special class of gauge conditions free from residual gaug…