31 citations · 46 across the 11 of their papers we have counts for
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Thermodynamic Gravity with Non-Extensive Horizon Entropy and Topological Calibration
Marco Figliolia, Petr Jizba, Gaetano Lambiase
We revisit Jacobson's thermodynamic derivation of gravity for generalized, non-extensive horizon entropies and develop a consistent framework in which modified gravitational dynami…
Generalized Birkhoff theorems and 2+2 direct pruduct spacetimes in Weyl conformal gravity
Petr Jizba, Tereza Lehečková
In this paper, we study 2+2 direct product spacetimes sourced by separated electromagnetic and Yang--Mills fields within Weyl conformal gravity. We prove that all such configuratio…
Generalized Eddington--Finkelstein Coordinates and Exact Vaidya-Type Solutions in Weyl Conformal Gravity
Petr Jizba, Tereza Lehečková
We study Vaidya-type solutions in Weyl conformal gravity (WCG) using Eddington--Finkelstein-like coordinates. Our considerations focus on spherical as well as hyperbolic and planar…
Newman-Penrose formalism and exact vacuum solutions to conformal Weyl gravity
Petr Jizba, Kamil Mudruňka
We study the exterior solution for a static, spherically symmetric source in Weyl conformal gravity in terms of the Newman--Penrose formalism. We first show that both the static, u…
Imprints of Barrow-Tsallis Cosmology in Primordial Gravitational Waves
Petr Jizba, Gaetano Lambiase, Giuseppe Gaetano Luciano +1
Both the Barrow and Tsallis entropies are one-parameter generalizations of the black-hole entropy, with the same microcanonical functional form. The ensuing deformation is quan…