95 citations · 122 across the 15 of their papers we have counts for
5 papers · 1 filter
Parametrizing the Hubble function instead of dark energy: Many possibilities
Sivasish Paul, Raj Kumar Das, Supriya Pan
In the present article, we propose a very simple parametrization of the Hubble function without parametrizing the dark components of the Universe. One of the novelties of the param…
Is Dark Energy an Effective Manifestation of Non-equilibrium Thermodynamics? -- Insights from DESI
Sauvik Bhattacharjee, Sudip Halder, Jaume de Haro +2
We investigate the background cosmological expansion on the onset of cosmological homogeneous matter creation scenario, a dynamical dark matter approach (), and…
Reheating constraints and the tension in Quintessential Inflation
Jaume de Haro, Supriya Pan
In this work, we focus on two important aspects of modern cosmology: reheating and Hubble constant tension within the framework of a unified model, namely, quintessential inflation…
Gravitational reheating formulas and bounds in oscillating backgrounds II: Constraints on the spectral index and gravitational dark matter production
Jaume de Haro, Supriya Pan
The reheating temperature plays a crucial role in the early universe's evolution, marking the transition from inflation to the radiation-dominated era. It directly impacts the numb…
Constraints on sterile neutrinos and the cosmological tensions
Supriya Pan, Osamu Seto, Tomo Takahashi +1
We investigate cosmological bounds on sterile neutrino masses in the light of the Hubble and tensions. We argue that non-zero masses for sterile neutrinos are inferred at 2$σ…