11 citations · 27 across the 9 of their papers we have counts for
9 papers
Van der Waals Gravity Theory
H. R. Fazlollahi
In this study, we propose an extension of general relativity inspired by the van der Waals equation of state, incorporating non-ideal thermodynamic effects into the gravitational s…
Extended Gravity Theories from a Thermodynamic Perspective
H. R. Fazlollahi
We extend the thermodynamic derivation of gravity in the Jacobson framework by generalizing the Clausius relation through a nontrivial entropy functional. We show that entropy defo…
Natural Emergence of LCDM Cosmology within General Relativity from Two Alternative Frameworks Without Fine-Tuning and Coincidence
H. R. Fazlollahi
In this study, by revisiting the quantum interpretation of the cosmological constant, we introduce its formal representation within standard General Relativity. Examining its behav…
A New Perspective on the Cosmological Constant and Its Core Problems
H. R. Fazlollahi
One of the most enduring and unresolved challenges in modern theoretical and observational cosmology is the fine-tuning and coincidence problems associated with the cosmological co…
Dark Matter and Energy-Momentum Squared Gravity
H. R. Fazlollahi, H. Velten, H. Shojaie
In this study, we examine the energy-momentum squared modified theory of gravity, where the squared term is incorporated into the conventional gravitational Lagrangi…
Renyi Entropy Correction to Expanding Universe
H. R. Fazlollahi
The Renyi entropy coprises a group of data estimates that sums up the well-known Shannon entropy, acquiring a considerable lot of its properties. It appears as unqualified and rest…
Holographic Dark Energy from Acceleration of Particle Horizon
H. R. Fazlollahi
Following the holographic principle, which suggests that the energy density of dark energy may be proportional inversely to the area of the event horizon of the Universe, we have p…
Chaplygin Gas models without Chaplygin Gas EoS
H. R. Fazlollahi
The equation of state of Chaplygin Gas is one of the simplest ways to illustrate dark energy effects during the late time. Indeed, while one uses the equation of state of Chaplygin…
F(R) cosmology via Noether symmetry and lambda-Chaplygin Gas like model
H. R. Fazlollahi
In this work, we consider F(R) alternative theories of gravity with an eye to Noether symmetry through the gauge theorem. For non-vacuum models, one finds Λ like gravity with energ…