236 citations · 1.3k across the 48 of their papers we have counts for
23 papers · 1 filter
Josephson interferometry in an Oppenheimer--Snyder-like scale-dependent black-hole spacetime
Ali Ovgun, Reggie C. Pantig, G. Lambiase
We develop a covariant framework for Josephson transport, superconducting interference, and shunt noise in the scale-dependent exterior generated by an Oppenheimer--Snyder-like col…
Ringdown of a black hole sourced by a Burkert-density effective anisotropic source
Yi Yang, Gaetano Lambiase, Ali Ovgun +2
We construct a static, spherically symmetric black hole spacetime sourced by an effective anisotropic matter distribution whose energy density follows the cored Burkert profile. Th…
Probing Quantum Gravity in Stellar Spacetimes: Phenomenological Insights
Reggie C. Pantig, Ali Ovgun, Gaetano Lambiase
We explore the weak-field phenomenology of a compact star spacetime modified by quantum gravitational corrections derived from the effective field theoretical (EFT) approach by Cal…
Phenomenology of Schwarzschild-like Black Holes with a Generalized Compton Wavelength
Reggie C. Pantig, Ali Ovgun, Gaetano Lambiase
We investigate the influence of the generalized Compton wavelength (GCW), emerging from a three-dimensional dynamical quantum vacuum (3D DQV) on Schwarzschild-like black hole space…
Spacetime-curvature induced uncertainty principle: linking the large-structure global effects to the local black hole physics
Reggie C. Pantig, Gaetano Lambiase, Ali Övgün +1
This paper links the advanced formulation of the Generalized Uncertainty Principle, termed the Asymptotic Generalized Extended Uncertainty Principle (AGEUP), to the corpuscular fra…
Weak field deflection angle and analytical parameter estimation of the Lorentz-violating Bumblebee parameter through the black hole shadow using EHT data
Gaetano Lambiase, Reggie C. Pantig, Ali Övgün
We explored how the Lorentz symmetry breaking parameter affects the Reissner-Nordstöm BH solution in the context of weak field deflection angle, and the black hole shadow. W…
Traces of quantum gravitational correction at third-order curvature through the black hole shadow and particle deflection at the weak field limit
Gaetano Lambiase, Reggie C. Pantig, Ali Övgün
This study investigates the impact of the quantum-gravity correction at the third-order curvature () on the black hole's shadow and deflection angle on the weak field regime,…
Shadow and quasinormal modes of the rotating Einstein-Euler-Heisenberg black holes
Gaetano Lambiase, Dhruba Jyoti Gogoi, Reggie C. Pantig +1
The Einstein-Euler-Heisenberg (EEH) black hole model is an extension of classical black hole solutions in general relativity, incorporating quantum electrodynamics (QED) effects vi…
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…
Coherent states for generalized uncertainty relations as Tsallis probability amplitudes: new route to non-extensive thermostatistics
Petr Jizba, Gaetano Lambiase, Giuseppe Gaetano Luciano +1
We study coherent states associated to a generalized uncertainty principle (GUP). We separately analyze the cases of positive and negative deformation parameter , showing that t…
Black hole surrounded by the pseudo-isothermal dark matter halo
Yi Yang, Dong Liu, Ali Övgün +2
The abundance of dark matter in the actual universe motivates us to construct the black hole spacetime enveloped by dark matter. In this paper, we derive a new spherically symmetri…
Rotating black hole mimicker surrounded by the string cloud
Yi Yang, Dong Liu, Ali Övgün +2
Traversable wormholes and regular black holes usually represent completely different scenarios. But in the black bounce spacetime they can be described by a same line element, whic…
Slow-roll inflation and growth of perturbations in Kaniadakis modification of Friedmann cosmology
Gaetano Lambiase, Giuseppe Gaetano Luciano, Ahmad Sheykhi
Kaniadakis entropy is a one-parameter deformation of the classical Boltzmann-Gibbs-Shannon entropy, arising from a self-consistent relativistic statistical theory. Assuming a Kania…
Investigating the Connection between Generalized Uncertainty Principle and Asymptotically Safe Gravity in Black Hole Signatures through Shadow and Quasinormal Modes
Gaetano Lambiase, Reggie C. Pantig, Dhruba Jyoti Gogoi +1
The links between the deformation parameter of the generalized uncertainty principle (GUP) to the two free parameters and of the running Newtonian coupling constant…
Constraining the Lorentz-Violating Bumblebee Vector Field with Big Bang Nucleosynthesis and Gravitational Baryogenesis
Mohsen Khodadi, Gaetano Lambiase, Ahmad Sheykhi
By keeping the cosmological principle i.e., an isotropic and homogeneous universe, we consider the cosmology of a vector-tensor theory of gravitation known as the \textit{bumblebee…
Non-linear Electrodynamics in Blandford-Znajeck Energy Extraction
Amodio Carleo, Gaetano Lambiase, Ali Övgün
Non-linear electrodynamics (NLED) is a generalization of Maxwell's electrodynamics for strong fields. It could have significant implications for the study of black holes and cosmol…
Shadow, lensing, quasinormal modes, greybody bounds and neutrino propagation by dyonic ModMax black holes
Reggie C. Pantig, Leonardo Mastrototaro, Gaetano Lambiase +1
Motivated by recent work on the Modified Maxwell (ModMax) black holes [Phys.Lett.B 10.1016/j.physletb.2020.136011], which are invariant in duality rotations and conformal transform…
Violation of the equivalence principle in curvature based extended gravity at finite temperature
Massimo Blasone, Salvatore Capozziello, Gaetano Lambiase +1
We review the possible violation of the Equivalence Principle at finite temperature T in the framework of curvature based Extended Theories of Gravity. Specifically, we first show…
Quantum interference in external gravitational fields beyond General Relativity
Luca Buoninfante, Gaetano Lambiase, Luciano Petruzziello
In this paper, we study the phenomenon of quantum interference in the presence of external gravitational fields described by alternative theories of gravity. We analyze both non-re…
Quantum nonlocality in extended theories of gravity
Victor A. S. V. Bittencourt, Massimo Blasone, Fabrizio Illuminati +3
We investigate how pure-state Einstein-Podolsky-Rosen correlations in the internal degrees of freedom of massive particles are affected by a curved spacetime background described b…
Phenomenology of GUP stars
Luca Buoninfante, Gaetano Lambiase, Giuseppe Gaetano Luciano +1
We study quantum corrections at the horizon scale of a black hole induced by a Generalized Uncertainty Principle (GUP) with a quadratic term in the momentum. The interplay between…
Equivalence principle violation at finite temperature in scalar-tensor gravity
Massimo Blasone, Salvatore Capozziello, Gaetano Lambiase +1
We analyze possible violations of the Equivalence Principle in scalar-tensor gravity at finite temperature Before we present an approach where the Equivalence Principle violat…
Casimir effect in quadratic theories of gravity
Luca Buoninfante, Gaetano Lambiase, Luciano Petruzziello +1
In this paper, we study the Casimir effect in a curved spacetime described by gravitational actions quadratic in the curvature. In particular, we consider the dynamics of a massles…