activity
20032026
most citedFuture of the universe in modified gravitational theories: Approaching to the finite-time future singularity

389 citations · 2.5k across the 58 of their papers we have counts for

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Showing 2025Show all

15 papers · 1 filter

gr-qc2025

Transitioning late-time cosmology with the Hubble parameterization

Vinod Kumar Bhardwaj, Saibal Ray, Kazuharu Bamba +1

We investigate a late-time cosmological model for a homogeneous and isotropic space-time in the Rastall theory. We explore the observational constraints on the Hubble parameter by…

gr-qc2025

Finslerian Wormholes in squared trace gravity

Z. Nekouee, B. R. Yashwanth, Manjunath Malligawad +3

We investigate traversable wormholes in squared-trace extended gravity within the framework of Finsler-Randers geometry equipped with the Barthel connection. The Einstein-Hilbert a…

hep-th2025

Physical constraints on the Maldacena-Shenker-Stanford chaos-bound in black hole spacetimes

Terkaa Victor Targema, Kazuharu Bamba, Riasat Ali +1

Chaotic motion near black holes has recently been examined through the lens of the Maldacena-Shenker-Stanford (MSS) chaos-bound, but reported violations remain contradictory. A sig…

gr-qc2025

Gauss-Bonnet entropy and thermal dynamics of RN-AdS black holes

M. Z. Bhatti, Kazuharu Bamba, I. Siddique +2

We explore the thermodynamics of a novel solution for the Reissner-Nordström-Anti-de Sitter (AdS) black hole, uniquely incorporating the Gauss-Bonnet term. Unlike previous studies…

gr-qc20251 cited

Differential topology and micro-structure of black hole in Einstein-Euler-Heisenberg spacetimes with exponential entropy

Muhammad Yasir, Tong Lining, Kazuharu Bamba

Exact black holes in the Einstein Euler-Heisenberg theory are explored with an exponential entropy framework by using the topological current -mapping theory. The topology class…

gr-qc20254 cited

An innovative black hole solution and thermodynamic properties in higher-order curvature gravity with a scalar field

G. G. L. Nashed, Usman Zafar, Kazuharu Bamba

A spherically symmetric black hole solution defined by the gravitational mass is explored in higher-order curvature gravity associated with a scalar field. It is demonstrated that…