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astro-ph.CO2024
Observational Evidence to Logistic Dark Energy Driving the Accelerating Universe
Sarath Nelleri, Gopi Krishna, Navaneeth Poonthottathil
We present logistic dark energy model (LDEM), where the dark energy density follows a logistic function for the scale factor. The equation of state parameter of dark energy ()…
astro-ph.CO2024★ 1 cited
Scalar Field Dominated Cosmology with Woods-Saxon Like Potential
Sreerag Radhakrishnan, Sarath Nelleri, Navaneeth Poonthottathil
Dark energy can be characterized by a canonical scalar field, known as quintessence. Quintessence allows for a dynamical equation of state . A previous st…
astro-ph.CO2023
Observational evidence for parametrized emergent dark energy models
Sarath Nelleri, Navaneeth Poonthottathil
Recent cosmological observations show a statistically significant tension in the estimated values of the cosmological parameters within the standard CDM framework. In a recent s…