131 citations · 938 across the 27 of their papers we have counts for
7 papers · 1 filter
Gravitational Collapse in General Relativity and in -gravity: A Comparative Study
Artyom V. Astashenok, Karim Mosani, Sergey D. Odintsov +1
We compare the gravitational collapse of homogeneous perfect fluid with various equations of state in the framework of General Relativity and in gravity. We make our calculat…
Traversable Wormholes with Exponential Shape Function in Modified Gravity and in General Relativity: A Comparative Study
Gauranga C. Samanta, Nisha Godani, Kazuharu Bamba
We have proposed a novel shape function on which the metric that models traversable wormholes is dependent. Using this shape function, the energy conditions, equation of state and…
Traversable Wormholes and Energy Conditions with Two Different Shape Functions in Gravity
Nisha Godani, Gauranga C. Samanta
Traversable wormholes, tunnel like structures introduced by Morris \& Thorne \cite{morris1}, have a significant role in connection of two different space-times or two different par…
Nonlinear electrodynamics, singularities and accelerated expansion
Gauranga C. Samanta, Shantanu K. Biswal, Kazuharu Bamba
Non-linear electrodynamics coupled to general relativity is investigated. In general relativity, it is observed that the expansion of the universe is accelerating if the source of…
Dark energy in spherically symmetric universe coupled with Brans-Dicke scalar field
Koijam Manihar Singh, Gauranga C. Samanta
The phenomenon of dark energy and its manifestations are studied in a spherically symmetric universe considering the Brans-Dicke scalar tensor theory. In the first model the dark e…
Qualitative behavior of cosmological models combining various matter fields
Parth Shah, Gauranga C. Samanta, Salvatore Capozziello
The late time accelerated expansion of the universe can be realized using scalar fields with given self-interacting potentials. Here we consider a straightforward approach where a…