6 citations · 22 across the 7 of their papers we have counts for
7 papers
Lorentzian path integral in Kantowski-Sachs anisotropic cosmology
Saumya Ghosh, Arnab Acharya, Sunandan Gangopadhyay +1
Motivated by the recent development in quantum cosmology, we revisit the anisotropic Kantowski-Sachs model in the light of a Lorentzian path integral formalism. Studies so far have…
Hawking effect in an extremal Kerr black hole spacetime
Saumya Ghosh, Subhajit Barman
It is well known that extremal black holes do not Hawking radiate, which is usually realized by taking an extremal limit from the nonextremal case. However, one cannot perceive the…
Meissner like effect in holographic superconductors with back reaction
Suchetana Pal, Saumya Ghosh, Sunandan Gangopadhyay
In this article we employ the matching method to analytically investigate the properties of holographic superconductors in the framework of Maxwell electrodynamics taking into acco…
Anisotropic scalar-metric quantum cosmology and unitarity
Saumya Ghosh, Sunandan Gangopadhyay, Prasanta K. Panigrahi
In this article we perform the Wheeler-DeWitt quantization for Bianchi type anisotropic cosmological model in the presence of a scalar field minimally coupled to the Einstein-H…
Scalar-metric quantum cosmology with Chaplygin gas and perfect fluid
Saumya Ghosh, Sunandan Gangopadhyay, Prasanta K. Panigrahi
In this paper we consider the flat FRW cosmology with a scalar field coupled with the metric along with generalized Chaplygin gas and perfect fluid comprising the matter sector. We…
Interacting Chaplygin gas revisited
Subhajit Saha, Saumya Ghosh, Sunandan Gangopadhyay
The implications of considering interaction between Chaplygin gas and a barotropic fluid with constant equation of state have been explored. The unique feature of this work is that…
Thermodynamics and emergent universe
Saumya Ghosh, Sunandan Gangopadhyay
We show that in the isentropic scenario the first order thermodynamical particle creation model gives an emergent universe solution even when the chemical potential is non-zero. Ho…