3 papers
gr-qc2025
Dynamics of late time universe in gravity
Bikash Chandra Roy, Aroonkumar Beesham, Bikash Chandra Paul
We construct cosmological model in nonmetricity scalar functional gravitational Lagrangian which describes the dynamical evolution of the late accelerating universe. Cosmolo…
gr-qc2024
Dynamical stability and phase space analysis of an Emergent Universe with non-interacting and interacting fluids
Bikash Chandra Roy, Anirban Chanda, Bikash Chandra Paul
We investigate the evolution of a flat Emergent Universe obtained with a non-linear equation of state (nEoS) in Einstein's general theory of Relativity. The nEoS is equivalent to t…
gr-qc2023
Observational constraints on the Emergent Universe with interacting non-linear fluids and its stability analysis
Anirban Chanda, Bikash Chandra Roy, Kazuharu Bamba +1
We investigate a flat Emergent Universe (EU) with a nonlinear equation of state which is equivalent to three different compositions of fluids. In the EU, initially, the evolution o…