1 citations · 2 across the 4 of their papers we have counts for
5 papers
Oscillatory dark energy with phantom crossings in Einstein-Gauss-Bonnet gravity
Saddam Hussain, Sandip Biswas
Recent baryon acoustic oscillation measurements from the Dark Energy Spectroscopic Instrument (DESI), combined with supernova observations, show a mild preference for an evolving d…
Does DESI prefer Damped Oscillating Dark Energy over Cosmological constant?
Saddam Hussain, Simran Arora, Qiang Wu +1
We investigate a dark-energy equation of state governed by a damped harmonic oscillator equation, admitting underdamped, critically damped, and overdamped solutions. Confronting th…
Probing Kerr black hole in a uniform Bertotti-Robinson magnetic field through astrophysical quasi-periodic oscillations
Hamza Rehman, Sanjar Shaymatov, Saddam Hussain +1
In this study, the behavior of high-frequency quasi-periodic oscillations (QPOs) is investigated around a Kerr black hole immersed in a uniform Bertotti-Robinson magnetic field. Th…
Dynamical systems approach to Cold and Warm Inflation within slow-roll and beyond
Sandip Biswas, Saddam Hussain, Kaushik Bhattacharya
In this work, we systematically present a new dynamical systems approach to standard inflationary processes and their variants as constant-roll inflation. Using the techniques pres…
Comprehensive Study of -essence Model: Dynamical System Analysis and Observational Constraints from Latest Type Ia Supernova and BAO Observations
Saddam Hussain, Sarath Nelleri, Kaushik Bhattacharya
We constrain the parameters of the -essence scalar field model with inverse square and exponential potentials using data sets including Pantheon+SHOES and the Dark Energy Survey…