25 citations · 61 across the 7 of their papers we have counts for
8 papers
Chameleon Gravity with an Environmental Frequency Dependent on Density
Raziyeh Zaregonbadi, Nasim Saba
Scalar field theories of modified gravity are strongly constrained by the absence of detectable long range fifth forces in laboratory and Solar System environments. The chameleon m…
Chameleon Gravity as an Alternative to Dark Matter
Raziyeh Zaregonbadi, Nasim Saba, Mehrdad Farhoudi
By studying the chameleon gravity on galaxy scales, we investigate the effects of the chameleon dark matter. To perform this task, we consider the dynamics of the chameleon scalar…
Cosmological Solutions of Chameleon Scalar Field Model
Raziyeh Zaregonbadi, Nasim Saba, Mehrdad Farhoudi
We investigate cosmological solutions of the chameleon model with a non-minimal coupling between the matter and the scalar field through a conformal factor with gravitational stren…
Cosmic Acceleration and Geodesic Deviation in Chameleon Scalar Field Model
Raziyeh Zaregonbadi, Nasim Saba, Mehrdad Farhoudi
While considering the chameleon scalar field model with the spatially flat FLRW background, we investigate the late-time acceleration phase of the universe, wherein we apply the ty…
A Contribution to COVID-19 Prevention through Crowd Collaboration using Conversational AI & Social Platforms
Jawad Haqbeen, Takayuki Ito, Sofia Sahab +5
COVID-19 Prevention, which combines the soft approaches and best practices for public health safety, is the only recommended solution from the health science and management society…
Noncommutative Universe and Chameleon Field Dynamics
Nasim Saba, Mehrdad Farhoudi
We consider a noncommutative standard model with a minimal coupling scalar field and a dynamical deformation between the canonical momenta of its scale factor and scalar field, and…
Inflationary Universe in Deformed Phase Space Scenario
S. M. M. Rasouli, N. Saba, M. Farhoudi +2
We consider a noncommutative (NC) inflationary model with a homogeneous scalar field minimally coupled to gravity. The particular NC inflationary setting produces entirely new cons…
Chameleon Field Dynamics During Inflation
Nasim Saba, Mehrdad Farhoudi
By studying the chameleon model during inflation, we investigate whether it can be a successful inflationary model, wherein we employ the common typical potential usually used in t…