89 citations · 619 across the 37 of their papers we have counts for
40 papers
Swampland diagnostics and observational tests of the inflationary universe in the Palatini formalism
Saeed Noori Gashti, Mohammad Reza Alipour, Mohammad Ali S. Afshar +1
We consider quintessential inflation in a quadratic Palatini model with a generalized Peebles-Vilenkin potential, where the same scalar field describes both the inflationary platea…
Striving to find a bridge between noncommutative and generalized entropy parameters in the harmonic oscillator dynamics
J. Sadeghi, Mohammad Ali S. Afshar, H. Z. Kalbasti +1
In this study, we use the harmonic oscillator s energy spectrum to connect its dynamical behavior to the formalism of statistical mechanics through entropy. We perform a thermal an…
Gravitational Wave Signatures of Periodic Orbits around a Schwarzschild-like Black Holes Submerged in an Exponential Density Dark Matter Profile
Mohammad Reza Alipour, Saeed Noori Gashti, Mohammad Ali S. Afshar +1
We study a Schwarzschild-like black hole embedded in an exponential-sphere (ESM) dark matter halo, characterized by a halo mass and a scale radius . We first show that t…
Geometry-Induced Termination of the Repetitive Penrose Process in Rotating Simpson-Visser Black Holes
Mohammad Ali S. Afshar, Mohammad Reza Alipour, Saeed Noori Gashti +1
We examine the Repetitive Penrose Process in the rotating Simpson-Visser spacetime, whose parameter space includes regular black holes, black-bounce geometries, and traversable wor…
Periodic Orbits and Gravitational Wave Signatures around the Bonanno--Reuter Regular Black Hole
Mohammad Reza Alipour, Mohammad Ali S. Afshar, Saeed Noori Gashti +2
Timelike geodesics, periodic orbits, and their associated gravitational-wave signatures are examined in the spacetime of a Bonanno--Reuter regular black hole, a geometry arising fr…
Repetitive Penrose Process in Rotating 4D Einstein-Gauss-Bonnet Black Holes
Mohammad Reza Alipour, Mohammad Ali S. Afshar, Saeed Noori Gashti
We investigate the repetitive Penrose process for neutral particles in a rotating four-dimensional Einstein--Gauss--Bonnet black hole obtained through the modified Newman--Janis al…
Beyond the Bounce: Multiple Tidal Sign Reversals and Turning-Point Bifurcations in Multi-Horizon Black Holes
Mohammad Ali S. Afshar, J. Sadeghi
We investigate the radial motion and tidal forces experienced by neutral test particles in multi-horizon black hole solutions arising from Einstein gravity coupled to nonlinear ele…
Repetitive Penrose process for charged particles in Kerr-Newman black holes
Mohammad Reza Alipour, Saeed Noori Gashti, Mohammad Ali S. Afshar
We investigate the repetitive Penrose process for charged particles in an initially extremal Kerr--Newman black hole and develop a nonlinear iterative framework in which the black-…
Thermodynamic Topology and Photon Spheres Analysis of Black Holes in Brane-World: Insights from Barrow Entropy
Usman Zafar, Abdul Jawad, Kazuharu Bamba +4
We explore the thermodynamics and geothermodynamics of black holes with Barrow entropy in a brane-world scenario, where the horizon geometry of the black hole is regarded as a frac…
Testing the Weak Gravity Conjecture via Gravitational Lensing, Black Hole Shadows, and Barrow Thermodynamics in F(R)-Euler-Heisenberg (A)dS Black Holes
Saeed Noori Gashti, Izzet Sakalli, Erdem Sucu +5
We investigate the interplay of the Weak Gravity Conjecture (WGC) and the Weak Cosmic Censorship Conjecture (WCCC) in -Euler-Heisenberg black holes in Anti-de Sitter and de S…
Holographic CFT Phase Transitions and Criticality for Einstein-Maxwell-Power-Yang-Mills AdS Black Holes
Mohammad Reza Alipour, Mohammad Ali S. Afshar, Saeed Noori Gashti +1
We present a comprehensive study of the thermodynamic phase structure for Anti-de Sitter black holes in Einstein-Maxwell-power-Yang-Mills gravity, reformulated through holographic…
The Influence of Stable Photon Sphere Advent on Orbital Precession in moving towards the Extremality
Mohammad Ali S. Afshar, J. Sadeghi
In this work, we investigate the behaviour of the periapsis shift in static charged black-hole spacetimes, focusing on the interplay between extremality and the Aschenbach-like eff…
Swampland Conjectures through ACT Observations: Observational Signatures of Radiative-Corrected Inflation
Mohammad Ali S Afshar, Saeed Noori Gashti, Mohammad Reza Alipour +3
We investigate the consistency of radiatively corrected inflationary models with both the latest observational data from the Atacama Cosmology Telescope (ACT) combined with Planck…
Probing the Weak Gravity Conjecture: Novel Aschenbach Signatures in Superextremal Non-Linear Charged AdS Black Holes
Mohammad Reza Alipour, Mohammad Ali S Afshar, Saeed Noori Gashti +2
This study investigates the nonlinear charged Anti-de Sitter (AdS) black hole solution within the framework of massive gravity, motivated by recent advancements linking the Weak Gr…
Can Static Black Holes in Massive Gravity Serve as Candidates for Aschenbach-Like Phenomena?
Mohammad Ali S. Afshar, Jafar Sadeghi, Tahereh Azizi +1
The Aschenbach effect is widely regarded as a manifestation of two quintessential relativistic features: frame dragging and extreme spacetime curvature. Traditionally associated wi…
Overcoming Barriers: Kramers' Escape Rate Analysis of Metastable Dynamics in First-Order Multi-Phase Transitions
Mohammad Ali S. Afshar, Saeed Noori Gashti, Mohammad Reza Alipour +1
The expanding application of classical thermodynamic methods to black hole physics has yielded significant advances in characterizing phase transition behavior. Among these approac…
A Deep Dive into classical and Topological CFT Thermodynamics in Lifshitz and Hyperscaling Violating Black Holes
Mohammad Ali S. Afshar, Mohammad Reza Alipour, Saeed Noori Gashti +1
To effectively utilize the AdS/CFT correspondence, a precise set of rules must be established to guide the translation of computed quantities in the gravitational sector into their…
Assessing WGC Compatibility in ModMax Black Holes via Photon Spheres Analysis and WCCC Validation
Saeed Noori Gashti, Mohammad Ali S. Afshar, Mohammad Reza Alipour +3
It seems that the regime of Hawking radiation and evaporation ultimately drives charged black holes toward super-extremality of the charge parameter and the dominance of extremal c…
WGC as WCCC protector: The Synergistic Effects of various Parameters in Identifying WGC candidate Models
Mohammad Ali S. Afshar, Jafar Sadeghi
The integration of non-commutative geometry and Gauss-Bonnet corrections in an action and the study of their black hole responses can provide highly intriguing insights. Our primar…
Topological Insights into Black Hole Thermodynamics: Non-Extensive Entropy in CFT framework
Mohammad Ali S. Afshar, Mohammad Reza Alipour, Saeed Noori Gashti +1
In this paper, We conducted an in-depth investigation into the thermodynamic topology of Einstein-Gauss-Bonnet black holes within the framework of Conformal Field Theory (CFT), con…
Mechanisms Behind the Aschenbach Effect in Non-Rotating Black Hole Spacetime
Mohammad Ali S. Afshar, Jafar Sadeghi
General relativity predicts that a rotating black hole drags the spacetime due to its spin. This effect can influence the motion of nearby objects, causing them to either fall into…
Mutual Influence of Photon Sphere and Non-Commutative Parameter in Various Non-Commutative Black Holes: Part I- Towards evidence for WGC
Mohammad Ali S. Afshar, Jafar Sadeghi
Non-commutative black holes(NCBH), due to the non-commutativity of spacetime coordinates, lead to a modification of the spacetime metric. By replacing the Dirac delta function with…
Analyzing WGC and WCCC through Charged Scalar Fields Fluxes with Charged AdS Black Holes Surrounded by Perfect Fluid Dark Matter in the CFT Thermodynamics
Ankit Anand, Saeed Noori Gashti, Mohammad Reza Alipour +1
In this paper, we conduct a comprehensive investigation into the weak cosmic censorship conjecture (WCCC) for Reissner-Nordström (R-N) AdS black holes that are influenced by Perfec…
Exploring the Parameter Space of Inflation Model on the Brane and its Compatibility with the Swampland Conjectures
Saeed Noori Gashti, Mohammad Reza Alipour, Mohammad Ali S. Afshar
In recent years, inflationary models have been studied from different perspectives using different conditions. Now, in this paper, we want to investigate the inverse monomial Infla…