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20092026
most citedThe Belle II Physics Book

570 citations

Showing gr-qcShow all

14 papers · 1 filter

gr-qc2025

Topological charge and black hole photon spheres in massive gravity

Pavan Kumar Yerra, Chandrasekhar Bhamidipati

In this paper, we investigate the existence and nature of the photon spheres (PS) in the background of four dimensional static and spherically symmetric black holes in the de Rham-…

gr-qc2024★ 6 cited

Static spheres and Aschenbach effect for black holes in massive gravity

Pavan Kumar Yerra, Sudipta Mukherji, Chandrasekhar Bhamidipati

In this paper, we study the trajectories of massive and massless particles in four dimensional static and spherically symmetric black holes in de Rham-Gabadadze-Tolley (dRGT) massi…

gr-qc2024★ 3 cited

A Statistical Derivation of Bekenstein-Hawking Entropy for Schwarzschild Black Holes

Naman Kumar

A microscopic derivation of the Bekenstein-Hawking entropy for the Schwarzschild black hole was presented earlier by using a non-trivial phase space. It was argued that the Schwarz…

gr-qc2024★ 15 cited

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…

gr-qc2024★ 3 cited

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…

gr-qc2024★ 6 cited

On the Accelerated Expansion of the Universe

Naman Kumar

If we look from a quantum perspective, the most natural way in which the universe can be created is in entangled pairs whose time flow is oppositely related. This suggests the idea…

gr-qc2024★ 7 cited

Relativistic Correction to Black Hole Entropy

Naman Kumar

In this paper, we study the relativistic correction to Bekenstein-Hawking entropy in the canonical ensemble and isothermal-isobaric ensemble and apply it to the cases of non-rotati…

gr-qc2024★ 2 cited

Variable Brane Tension and Dark Energy

Naman Kumar

In this letter, we show that in a particular braneworld scenario with variable brane tension, we obtain matter acting as dark energy while the gravitational constant promoted t…

gr-qc2024★ 2 cited

Recovering semiclassical Einstein's equation using generalized entropy

Naman Kumar

In this letter, we show that the Semiclassical Einstein's Field Equation can be recovered using the generalized entropy . This approach is reminiscent of non-equilibrium t…

gr-qc2022★ 105 cited

Topology of Born-Infeld AdS black holes in 4D novel Einstein-Gauss-Bonnet gravity

Pavan Kumar Yerra, Chandrasekhar Bhamidipati

The topological classification of critical points of black holes in 4D Einstein-Gauss-Bonnet gravity coupled to Born-Infeld theory is investigated. Considered independently, Born-i…

gr-qc2022★ 125 cited

Topology of black hole thermodynamics in Gauss-Bonnet gravity

Pavan Kumar Yerra, Chandrasekhar Bhamidipati

Thermodynamics of black holes in anti de Sitter (AdS) spacetimes typically contains critical points in the phase diagram, some of which correspond to the first order transition end…

gr-qc2021★ 25 cited

Novel relations in massive gravity at Hawking-Page transition

Pavan Kumar Yerra, Chandrasekhar Bhamidipati

Sign and magnitude of Ruppeiner's curvature is an empirical indicator of the respective nature and strength of microstructures of a thermodynamic system. For d-dimensional Sc…

gr-qc2020★ 16 cited

Thermodynamic curvature of AdS black holes with dark energy

Aditya Singh, Aritra Ghosh, Chandrasekhar Bhamidipati

In this paper, we study the effect of dark energy on the extended thermodynamic structure and interacting microstructures of black holes in AdS, through an analysis of thermodynami…

gr-qc2019★ 84 cited

Thermodynamic geometry for charged Gauss-Bonnet black holes in AdS spacetimes

Aritra Ghosh, Chandrasekhar Bhamidipati

In this paper, we study the thermodynamic geometry of charged Gauss-Bonnet black holes (and Reissner-Nordström black holes, for the sake of comparison) in AdS: in both - and…