596 citations
- Indian Centre for Space PhysicsIN143 papers
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8 papers · 2 filters
Thermogeometric phase transition in a unified framework
Rabin Banerjee, Bibhas Ranjan Majhi, Saurav Samanta
Using geomterothermodynamics (GTD), we investigate the phase transition of black hole in a metric independent way. We show that for any black hole, curvature scalar (of equilibrium…
Bounce and Collapse in the Slotheonic Universe
Debabrata Adak, Amna Ali
In this paper, we examine the cosmological dynamics of a slotheon field in a linear potential. The slotheon correction term respects the galileon…
Constrained field theories on spherically symmetric spacetimes with horizons
Karan Fernandes, Suman Ghosh, Amitabha Lahiri
We apply the Dirac-Bergmann algorithm for the analysis of constraints to gauge theories defined on spherically symmetric black hole backgrounds. We find that the constraints for a…
Future evolution in a backreaction model and the analogous scalar field cosmology
Amna Ali, A. S. Majumdar
We investigate the future evolution of the universe using the Buchert framework for averaged backreaction in the context of a two-domain partition of the universe. We show that thi…
Torsional Newton-Cartan geometry from Galilean gauge theory
Rabin Banerjee, Pradip Mukherjee
Using the recently advanced Galilean gauge theory (GGT) we give a comprehensive construction of torsional Newton Cartan geometry. The coupling of a Galilean symmetric model with ba…
Thermodynamic implications of the gravitationally induced particle creation scenario
Subhajit Saha, Anindita Mondal
A rigorous thermodynamic analysis has been done at the apparent horizon of a spatially flat Friedmann-Lemaitre-Robertson-Walker universe for the gravitationally induced particle cr…