10 papers
Dynamical and Observational Analysis of Generalized Nash's Theory of Gravity
Amin Rezaei Akbarieh, Mohammad Amin Bolouri, Yaghoub Heydarzade
We investigate cosmic evolution in generalized Nash's theory of gravity involving the quadratic Ricci invariant . The analysis is divided into two complementar…
Dynamical Casimir Effect and Vacuum Friction in the Near-Horizon Geometry of a Black Hole
Hamed Hadi, Amin Rezaei Akbarieh, Goksel Daylan Esmer
We investigate the Dynamical Casimir Effect (DCE) for a relativistic scalar field confined within a cavity possessing moving boundaries in the (1+1)-dimensional near-horizon geomet…
Gravitational Memory Effect in the Massless Vector Field
Pouneh Safarzadeh Ilkhchi, Amin Rezaei Akbarieh, Shaoqi Hou
We analyze the infrared structure and memory effects of a massless vector tensor theory with non minimal curvature coupling in asymptotically flat spacetimes. Using Bondi Sachs exp…
Exact Solutions for a Teleparallel Cosmological Model with Vector Field via Noether Symmetry
Yusuf Kucukakca, Fereshteh Omidvar, Amin Rezaei Akbarieh
We study a cosmological model in the framework of teleparallel gravity, where a vector field is non-minimally coupled to the torsion scalar in a flat Friedmann-Robertson…
Gravitational memory effects in Tachyon gravity
Pouneh Safarzadeh Ilkhchi, Amin Rezaei Akbarieh, Ali Seraj
In this paper, we explore how a massless Tachyon field, when non-minimally coupled to gravity, affects gravitational memory, soft theorems, and symmetries near null infinity. We se…
Generalized Misner-Sharp energy in gravity
Amin Rezaei Akbarieh, Navid Safarzadeh Ilkhchi, Yaghoub Heydarzade
In this work, we explore the formulation of the Misner-Sharp energy within the framework of gravity, a modified theory incorporating the Ricci scalar and th…