144 citations · 414 across the 15 of their papers we have counts for
16 papers
Entropy bounds, Geroch process, and the sign of deformation parameter
Bijan Bagchi, Akshat Pandey, Parmest Roy +1
Based on Geroch's process of dropping a system into a black hole from the vicinity of the horizon, we investigate in this paper the influence of deformation on the Bekenstein entro…
Dimming of Photon Ring due to Photon-Axion Conversion around Kerr Black Holes
Rahul Dhyani, Sauvik Sen, Indrani Banerjee +2
We investigate photon-axion conversion in the vicinity of rotating Kerr black holes where strong gravity traps photons on near-circular trajectories, effectively enhancing the path…
Painlevé-Gullstrand coordinates for Kiselev black holes
Bijan Bagchi, Sauvik Sen
We investigate the implications provided by the modified Painlevé-Gullstrand coordinates in the context of quintessence for the Kiselev black hole. In this regard, we set up a full…
Quantum tunneling driven by quintessence and the role of GUP
Sauvik Sen
In this paper, we studied quantum tunneling of massless and massive particles pertaining to a Schwarzschild black hole in a quintessence background, and explored the consequences e…
Landauer's principle and black hole area quantization
Bijan Bagchi, Aritra Ghosh, Sauvik Sen
This article assesses Landauer's principle from information theory in the context of area quantization of the Schwarzschild black hole. Within a quantum-mechanical perspective wher…
Quantized Area of the Schwarzschild Black Hole: A non-Hermitian Perspective
Bijan Bagchi, Aritra Ghosh, Sauvik Sen
In this work, our aim is to link Bekenstein's quantized form of the area of the event horizon to the Hamiltonian of the non-Hermitian Swanson oscillator which is known to be $\math…
Analogue Hawking radiation as a tunneling in a two-level -symmetric system
Bijan Bagchi, Rahul Ghosh, Sauvik Sen
In the light of a general scenario of a two-level non-Hermitian -symmetric Hamiltonian we apply the tetrad-based method to analyze the possibility of analogue Hawking…
Refractive index profiles for a -symmetric optical structure
Bijan Bagchi, Rahul Ghosh, Sauvik Sen
By mapping the scalar Helmholtz equation (SHE) to the Schrodinger form we investigate the behaviour of optical structure when the refractive index distribution a…
Artificial Hawking radiation, weak pseudo-Hermiticity and Weyl semimetal blackhole analogy
Bijan Bagchi, Sauvik Sen
We examine the possibility of artificial Hawking radiation by proposing a non-PT-symmetric weakly pseudo-Hermitian two-band model containing a tilting parameter by pursuing Weyl se…
MOND and asymptotic safe gravity
Bijan Bagchi, Sauvik Sen
The modified Newtonian dynamics (MOND) paradigm is discussed in the context of asymptotic safe gravity. We estimate quantum correction to the logarithmic potential which is well kn…
Tunneling of Hawking radiation for BTZ black hole revisited
Bijan Bagchi, Sauvik Sen
We re-examine Hawking radiation for a nonrotating (2+1)-dimensional BTZ black hole and evaluate the transmission probability of tunneling through the barrier of the event horizon e…
Hawking radiation for a (2+1)-dimensional spinning black hole and the issue of tunneling
Sauvik Sen
We examine Hawking radiation for a (2+1)-dimensional spinning black hole and study the interesting possibility of tunneling through the event horizon which acts as a classically fo…
Cosmology in scalar tensor theory and asymptotically de-Sitter Universe
A. A. Sen, S. Sen
We have investigated the cosmological scenarios with a four dimensional effective action which is connected with multidimensional, supergravity and string theories. The solution fo…
Late time acceleration in Brans Dicke Cosmology
S. Sen, A. A. Sen
In this work we have investigated the possibility of having a late time accelerated phase of the universe, suggested by recent supernova observation, in the context of Brans Dicke…
Dissipative Fluid in Brans Dicke theory and late time acceleration
A. A. Sen, S. Sen, S. Sethi
We have investigated the possibility of having a late time accelerated expansion phase for the universe. We have used a dissipative fluid in Brans-Dicke(BD) theory for this purpose…
Self interacting Brans Dicke cosmology and Quintessence
S. Sen, T. R. Seshadri
Recent cosmological observations reveal that we are living in a flat accelerated expanding universe. In this work we have investigated the nature of the potential compatible with t…