Ultracompact objects (UCOs) are horizonless compact objects that present light rings (LRs):
circular photon orbits. As a result, they could be black hole mimickers. Some years ago …

In this manuscript, we focus on a comprehensive investigation of non-static axially symmetric
fluid distributions in the background of Palatini F (R) gravity. To do so, a general framework …

We construct a general class of modified Ellis-Bronnikov wormholes, where one asymptotic
Minkowski region is replaced by a bounded 2-sphere core, characterized by an asymptotic …

This paper studies the cosmographic and matter bounce scenario in modified theory. The
corresponding field equations are evaluated after considering special corrections of a …

In recent times, the study of the Casimir effect in quantum field theory has garnered
increasing attention because of its potential to be an ideal source of exotic matter needed for …

We explore wormhole solutions sourced by Casimir energy density involving generalized
uncertainty principle corrections within the framework of Rastall-Rainbow gravity. The …

We investigate the waveforms and quasi-normal modes around Schwarzschild traversable
wormholes under different field perturbations, including the scalar field perturbation, the …

The absence of a well-established theory concerning gravity and its behavior at high
energies demands a global effort to construct a viable quantum theory for the gravitational …